Home / 15,422.46-21,283.02-8,348.91

Finding the Fourth Proportional to 15,422.46, 21,283.02 and 8,348.91

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Solution

The fourth proportional to 15,422.46, 21,283.02 and 8,348.91 is: 11,521.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.46 : 21,283.02 = 8,348.91 : x
  2. Step 2: Convert to fraction form
    15,422.46/21,283.02 = 8,348.91/x
  3. Step 3: Cross multiply
    15,422.46x = 21,283.02 × 8,348.91
  4. Step 4: Simplify right side
    15,422.46x = 177,690,018.51
  5. Step 5: Solve for x
    x = 177,690,018.51/15,422.46
  6. Step 6: Final answer
    x = 11,521.51

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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.