Home / 15,400.62-21,252.78-9,348.75

Finding the Fourth Proportional to 15,400.62, 21,252.78 and 9,348.75

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Solution

The fourth proportional to 15,400.62, 21,252.78 and 9,348.75 is: 12,901.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.62 : 21,252.78 = 9,348.75 : x
  2. Step 2: Convert to fraction form
    15,400.62/21,252.78 = 9,348.75/x
  3. Step 3: Cross multiply
    15,400.62x = 21,252.78 × 9,348.75
  4. Step 4: Simplify right side
    15,400.62x = 198,686,927.03
  5. Step 5: Solve for x
    x = 198,686,927.03/15,400.62
  6. Step 6: Final answer
    x = 12,901.23

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Half scale
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Double scale
Find fourth proportional to 15,401.62, 21,254.16 and 9,349.75
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.