Home / 10,407.31-14,362.10-6,687.79

Finding the Fourth Proportional to 10,407.31, 14,362.10 and 6,687.79

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Solution

The fourth proportional to 10,407.31, 14,362.10 and 6,687.79 is: 9,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.31 : 14,362.10 = 6,687.79 : x
  2. Step 2: Convert to fraction form
    10,407.31/14,362.10 = 6,687.79/x
  3. Step 3: Cross multiply
    10,407.31x = 14,362.10 × 6,687.79
  4. Step 4: Simplify right side
    10,407.31x = 96,050,708.76
  5. Step 5: Solve for x
    x = 96,050,708.76/10,407.31
  6. Step 6: Final answer
    x = 9,229.16

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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.