Home / 12,500.64-18,741.62-7,569.08

Finding the Fourth Proportional to 12,500.64, 18,741.62 and 7,569.08

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Solution

The fourth proportional to 12,500.64, 18,741.62 and 7,569.08 is: 11,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.64 : 18,741.62 = 7,569.08 : x
  2. Step 2: Convert to fraction form
    12,500.64/18,741.62 = 7,569.08/x
  3. Step 3: Cross multiply
    12,500.64x = 18,741.62 × 7,569.08
  4. Step 4: Simplify right side
    12,500.64x = 141,856,821.11
  5. Step 5: Solve for x
    x = 141,856,821.11/12,500.64
  6. Step 6: Final answer
    x = 11,347.96

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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.