Home / 9,265.11-12,787.34-5,287.52

Finding the Fourth Proportional to 9,265.11, 12,787.34 and 5,287.52

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Solution

The fourth proportional to 9,265.11, 12,787.34 and 5,287.52 is: 7,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,265.11 : 12,787.34 = 5,287.52 : x
  2. Step 2: Convert to fraction form
    9,265.11/12,787.34 = 5,287.52/x
  3. Step 3: Cross multiply
    9,265.11x = 12,787.34 × 5,287.52
  4. Step 4: Simplify right side
    9,265.11x = 67,613,225.62
  5. Step 5: Solve for x
    x = 67,613,225.62/9,265.11
  6. Step 6: Final answer
    x = 7,297.62

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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.