Home / 7,487.18-11,230.86-3,590.72

Finding the Fourth Proportional to 7,487.18, 11,230.86 and 3,590.72

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Solution

The fourth proportional to 7,487.18, 11,230.86 and 3,590.72 is: 5,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.18 : 11,230.86 = 3,590.72 : x
  2. Step 2: Convert to fraction form
    7,487.18/11,230.86 = 3,590.72/x
  3. Step 3: Cross multiply
    7,487.18x = 11,230.86 × 3,590.72
  4. Step 4: Simplify right side
    7,487.18x = 40,326,873.62
  5. Step 5: Solve for x
    x = 40,326,873.62/7,487.18
  6. Step 6: Final answer
    x = 5,386.12

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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.