Home / 10,617.28-14,651.92-6,640.65

Finding the Fourth Proportional to 10,617.28, 14,651.92 and 6,640.65

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Solution

The fourth proportional to 10,617.28, 14,651.92 and 6,640.65 is: 9,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.28 : 14,651.92 = 6,640.65 : x
  2. Step 2: Convert to fraction form
    10,617.28/14,651.92 = 6,640.65/x
  3. Step 3: Cross multiply
    10,617.28x = 14,651.92 × 6,640.65
  4. Step 4: Simplify right side
    10,617.28x = 97,298,280.85
  5. Step 5: Solve for x
    x = 97,298,280.85/10,617.28
  6. Step 6: Final answer
    x = 9,164.15

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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.