Home / 7,487.12-11,227.16-3,587.20

Finding the Fourth Proportional to 7,487.12, 11,227.16 and 3,587.20

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Solution

The fourth proportional to 7,487.12, 11,227.16 and 3,587.20 is: 5,379.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.12 : 11,227.16 = 3,587.20 : x
  2. Step 2: Convert to fraction form
    7,487.12/11,227.16 = 3,587.20/x
  3. Step 3: Cross multiply
    7,487.12x = 11,227.16 × 3,587.20
  4. Step 4: Simplify right side
    7,487.12x = 40,274,068.35
  5. Step 5: Solve for x
    x = 40,274,068.35/7,487.12
  6. Step 6: Final answer
    x = 5,379.11

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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.