Home / 11,700.20-17,545.18-3,490.28

Finding the Fourth Proportional to 11,700.20, 17,545.18 and 3,490.28

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Solution

The fourth proportional to 11,700.20, 17,545.18 and 3,490.28 is: 5,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,700.20 : 17,545.18 = 3,490.28 : x
  2. Step 2: Convert to fraction form
    11,700.20/17,545.18 = 3,490.28/x
  3. Step 3: Cross multiply
    11,700.20x = 17,545.18 × 3,490.28
  4. Step 4: Simplify right side
    11,700.20x = 61,237,590.85
  5. Step 5: Solve for x
    x = 61,237,590.85/11,700.20
  6. Step 6: Final answer
    x = 5,233.89

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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.