Home / 11,156.18-16,707.89-9,687.35

Finding the Fourth Proportional to 11,156.18, 16,707.89 and 9,687.35

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Solution

The fourth proportional to 11,156.18, 16,707.89 and 9,687.35 is: 14,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.18 : 16,707.89 = 9,687.35 : x
  2. Step 2: Convert to fraction form
    11,156.18/16,707.89 = 9,687.35/x
  3. Step 3: Cross multiply
    11,156.18x = 16,707.89 × 9,687.35
  4. Step 4: Simplify right side
    11,156.18x = 161,855,129.75
  5. Step 5: Solve for x
    x = 161,855,129.75/11,156.18
  6. Step 6: Final answer
    x = 14,508.11

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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.