Home / 12,475.12-17,214.96-7,445.02

Finding the Fourth Proportional to 12,475.12, 17,214.96 and 7,445.02

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Solution

The fourth proportional to 12,475.12, 17,214.96 and 7,445.02 is: 10,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.12 : 17,214.96 = 7,445.02 : x
  2. Step 2: Convert to fraction form
    12,475.12/17,214.96 = 7,445.02/x
  3. Step 3: Cross multiply
    12,475.12x = 17,214.96 × 7,445.02
  4. Step 4: Simplify right side
    12,475.12x = 128,165,721.50
  5. Step 5: Solve for x
    x = 128,165,721.50/12,475.12
  6. Step 6: Final answer
    x = 10,273.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.