Home / 12,375.93-18,538.75-9,881.34

Finding the Fourth Proportional to 12,375.93, 18,538.75 and 9,881.34

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Solution

The fourth proportional to 12,375.93, 18,538.75 and 9,881.34 is: 14,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.93 : 18,538.75 = 9,881.34 : x
  2. Step 2: Convert to fraction form
    12,375.93/18,538.75 = 9,881.34/x
  3. Step 3: Cross multiply
    12,375.93x = 18,538.75 × 9,881.34
  4. Step 4: Simplify right side
    12,375.93x = 183,187,691.93
  5. Step 5: Solve for x
    x = 183,187,691.93/12,375.93
  6. Step 6: Final answer
    x = 14,801.93

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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.