Home / 10,407.31-15,528.85-9,422.35

Finding the Fourth Proportional to 10,407.31, 15,528.85 and 9,422.35

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Solution

The fourth proportional to 10,407.31, 15,528.85 and 9,422.35 is: 14,059.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.31 : 15,528.85 = 9,422.35 : x
  2. Step 2: Convert to fraction form
    10,407.31/15,528.85 = 9,422.35/x
  3. Step 3: Cross multiply
    10,407.31x = 15,528.85 × 9,422.35
  4. Step 4: Simplify right side
    10,407.31x = 146,318,259.80
  5. Step 5: Solve for x
    x = 146,318,259.80/10,407.31
  6. Step 6: Final answer
    x = 14,059.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.