Home / 12,744.67-17,587.85-7,155.55

Finding the Fourth Proportional to 12,744.67, 17,587.85 and 7,155.55

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Solution

The fourth proportional to 12,744.67, 17,587.85 and 7,155.55 is: 9,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.67 : 17,587.85 = 7,155.55 : x
  2. Step 2: Convert to fraction form
    12,744.67/17,587.85 = 7,155.55/x
  3. Step 3: Cross multiply
    12,744.67x = 17,587.85 × 7,155.55
  4. Step 4: Simplify right side
    12,744.67x = 125,850,616.35
  5. Step 5: Solve for x
    x = 125,850,616.35/12,744.67
  6. Step 6: Final answer
    x = 9,874.77

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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.