Home / 12,747.48-17,587.58-7,438.53

Finding the Fourth Proportional to 12,747.48, 17,587.58 and 7,438.53

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Solution

The fourth proportional to 12,747.48, 17,587.58 and 7,438.53 is: 10,262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.48 : 17,587.58 = 7,438.53 : x
  2. Step 2: Convert to fraction form
    12,747.48/17,587.58 = 7,438.53/x
  3. Step 3: Cross multiply
    12,747.48x = 17,587.58 × 7,438.53
  4. Step 4: Simplify right side
    12,747.48x = 130,825,812.06
  5. Step 5: Solve for x
    x = 130,825,812.06/12,747.48
  6. Step 6: Final answer
    x = 10,262.88

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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.