Home / 12,505.59-18,751.46-5,115.24

Finding the Fourth Proportional to 12,505.59, 18,751.46 and 5,115.24

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Solution

The fourth proportional to 12,505.59, 18,751.46 and 5,115.24 is: 7,670.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.59 : 18,751.46 = 5,115.24 : x
  2. Step 2: Convert to fraction form
    12,505.59/18,751.46 = 5,115.24/x
  3. Step 3: Cross multiply
    12,505.59x = 18,751.46 × 5,115.24
  4. Step 4: Simplify right side
    12,505.59x = 95,918,192.67
  5. Step 5: Solve for x
    x = 95,918,192.67/12,505.59
  6. Step 6: Final answer
    x = 7,670.03

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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.