Home / 10,690.24-16,035.32-5,140.12

Finding the Fourth Proportional to 10,690.24, 16,035.32 and 5,140.12

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Solution

The fourth proportional to 10,690.24, 16,035.32 and 5,140.12 is: 7,710.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,690.24 : 16,035.32 = 5,140.12 : x
  2. Step 2: Convert to fraction form
    10,690.24/16,035.32 = 5,140.12/x
  3. Step 3: Cross multiply
    10,690.24x = 16,035.32 × 5,140.12
  4. Step 4: Simplify right side
    10,690.24x = 82,423,469.04
  5. Step 5: Solve for x
    x = 82,423,469.04/10,690.24
  6. Step 6: Final answer
    x = 7,710.16

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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.