Home / 10,650.64-14,699.30-6,115.12

Finding the Fourth Proportional to 10,650.64, 14,699.30 and 6,115.12

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Solution

The fourth proportional to 10,650.64, 14,699.30 and 6,115.12 is: 8,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,650.64 : 14,699.30 = 6,115.12 : x
  2. Step 2: Convert to fraction form
    10,650.64/14,699.30 = 6,115.12/x
  3. Step 3: Cross multiply
    10,650.64x = 14,699.30 × 6,115.12
  4. Step 4: Simplify right side
    10,650.64x = 89,887,983.42
  5. Step 5: Solve for x
    x = 89,887,983.42/10,650.64
  6. Step 6: Final answer
    x = 8,439.68

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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.