Home / 7,330.90-11,007.15-5,149.30

Finding the Fourth Proportional to 7,330.90, 11,007.15 and 5,149.30

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Solution

The fourth proportional to 7,330.90, 11,007.15 and 5,149.30 is: 7,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,330.90 : 11,007.15 = 5,149.30 : x
  2. Step 2: Convert to fraction form
    7,330.90/11,007.15 = 5,149.30/x
  3. Step 3: Cross multiply
    7,330.90x = 11,007.15 × 5,149.30
  4. Step 4: Simplify right side
    7,330.90x = 56,679,117.50
  5. Step 5: Solve for x
    x = 56,679,117.50/7,330.90
  6. Step 6: Final answer
    x = 7,731.54

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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.