Home / 9,269.20-12,788.34-5,287.45

Finding the Fourth Proportional to 9,269.20, 12,788.34 and 5,287.45

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Solution

The fourth proportional to 9,269.20, 12,788.34 and 5,287.45 is: 7,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,269.20 : 12,788.34 = 5,287.45 : x
  2. Step 2: Convert to fraction form
    9,269.20/12,788.34 = 5,287.45/x
  3. Step 3: Cross multiply
    9,269.20x = 12,788.34 × 5,287.45
  4. Step 4: Simplify right side
    9,269.20x = 67,617,708.33
  5. Step 5: Solve for x
    x = 67,617,708.33/9,269.20
  6. Step 6: Final answer
    x = 7,294.88

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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.