Home / 10,140.10-15,210.15-5,766.10

Finding the Fourth Proportional to 10,140.10, 15,210.15 and 5,766.10

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Solution

The fourth proportional to 10,140.10, 15,210.15 and 5,766.10 is: 8,649.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.10 : 15,210.15 = 5,766.10 : x
  2. Step 2: Convert to fraction form
    10,140.10/15,210.15 = 5,766.10/x
  3. Step 3: Cross multiply
    10,140.10x = 15,210.15 × 5,766.10
  4. Step 4: Simplify right side
    10,140.10x = 87,703,245.92
  5. Step 5: Solve for x
    x = 87,703,245.92/10,140.10
  6. Step 6: Final answer
    x = 8,649.15

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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.