Home / 12,500.28-17,237.88-9,143.64

Finding the Fourth Proportional to 12,500.28, 17,237.88 and 9,143.64

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Solution

The fourth proportional to 12,500.28, 17,237.88 and 9,143.64 is: 12,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.28 : 17,237.88 = 9,143.64 : x
  2. Step 2: Convert to fraction form
    12,500.28/17,237.88 = 9,143.64/x
  3. Step 3: Cross multiply
    12,500.28x = 17,237.88 × 9,143.64
  4. Step 4: Simplify right side
    12,500.28x = 157,616,969.08
  5. Step 5: Solve for x
    x = 157,616,969.08/12,500.28
  6. Step 6: Final answer
    x = 12,609.08

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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.