Home / 12,317.13-18,475.70-7,380.59

Finding the Fourth Proportional to 12,317.13, 18,475.70 and 7,380.59

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Solution

The fourth proportional to 12,317.13, 18,475.70 and 7,380.59 is: 11,070.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.13 : 18,475.70 = 7,380.59 : x
  2. Step 2: Convert to fraction form
    12,317.13/18,475.70 = 7,380.59/x
  3. Step 3: Cross multiply
    12,317.13x = 18,475.70 × 7,380.59
  4. Step 4: Simplify right side
    12,317.13x = 136,361,437.38
  5. Step 5: Solve for x
    x = 136,361,437.38/12,317.13
  6. Step 6: Final answer
    x = 11,070.88

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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.