Home / 10,220.31-15,320.88-9,307.17

Finding the Fourth Proportional to 10,220.31, 15,320.88 and 9,307.17

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Solution

The fourth proportional to 10,220.31, 15,320.88 and 9,307.17 is: 13,952.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.31 : 15,320.88 = 9,307.17 : x
  2. Step 2: Convert to fraction form
    10,220.31/15,320.88 = 9,307.17/x
  3. Step 3: Cross multiply
    10,220.31x = 15,320.88 × 9,307.17
  4. Step 4: Simplify right side
    10,220.31x = 142,594,034.71
  5. Step 5: Solve for x
    x = 142,594,034.71/10,220.31
  6. Step 6: Final answer
    x = 13,952.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.