Home / 15,422.49-21,283.02-8,348.92

Finding the Fourth Proportional to 15,422.49, 21,283.02 and 8,348.92

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Solution

The fourth proportional to 15,422.49, 21,283.02 and 8,348.92 is: 11,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.49 : 21,283.02 = 8,348.92 : x
  2. Step 2: Convert to fraction form
    15,422.49/21,283.02 = 8,348.92/x
  3. Step 3: Cross multiply
    15,422.49x = 21,283.02 × 8,348.92
  4. Step 4: Simplify right side
    15,422.49x = 177,690,178.13
  5. Step 5: Solve for x
    x = 177,690,178.13/15,422.49
  6. Step 6: Final answer
    x = 11,521.50

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Half scale
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Double scale
Find fourth proportional to 15,423.49, 21,284.40 and 8,349.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.