Home / 11,617.30-16,031.92-6,312.12

Finding the Fourth Proportional to 11,617.30, 16,031.92 and 6,312.12

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Solution

The fourth proportional to 11,617.30, 16,031.92 and 6,312.12 is: 8,710.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.30 : 16,031.92 = 6,312.12 : x
  2. Step 2: Convert to fraction form
    11,617.30/16,031.92 = 6,312.12/x
  3. Step 3: Cross multiply
    11,617.30x = 16,031.92 × 6,312.12
  4. Step 4: Simplify right side
    11,617.30x = 101,195,402.87
  5. Step 5: Solve for x
    x = 101,195,402.87/11,617.30
  6. Step 6: Final answer
    x = 8,710.75

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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.