Home / 10,209.30-15,314.40-5,766.90

Finding the Fourth Proportional to 10,209.30, 15,314.40 and 5,766.90

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Solution

The fourth proportional to 10,209.30, 15,314.40 and 5,766.90 is: 8,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.30 : 15,314.40 = 5,766.90 : x
  2. Step 2: Convert to fraction form
    10,209.30/15,314.40 = 5,766.90/x
  3. Step 3: Cross multiply
    10,209.30x = 15,314.40 × 5,766.90
  4. Step 4: Simplify right side
    10,209.30x = 88,316,613.36
  5. Step 5: Solve for x
    x = 88,316,613.36/10,209.30
  6. Step 6: Final answer
    x = 8,650.60

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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.