Home / 10,688.08-16,006.20-7,391.92

Finding the Fourth Proportional to 10,688.08, 16,006.20 and 7,391.92

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Solution

The fourth proportional to 10,688.08, 16,006.20 and 7,391.92 is: 11,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.08 : 16,006.20 = 7,391.92 : x
  2. Step 2: Convert to fraction form
    10,688.08/16,006.20 = 7,391.92/x
  3. Step 3: Cross multiply
    10,688.08x = 16,006.20 × 7,391.92
  4. Step 4: Simplify right side
    10,688.08x = 118,316,549.90
  5. Step 5: Solve for x
    x = 118,316,549.90/10,688.08
  6. Step 6: Final answer
    x = 11,069.95

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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.