Home / 9,267.41-12,787.15-5,287.79

Finding the Fourth Proportional to 9,267.41, 12,787.15 and 5,287.79

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Solution

The fourth proportional to 9,267.41, 12,787.15 and 5,287.79 is: 7,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.41 : 12,787.15 = 5,287.79 : x
  2. Step 2: Convert to fraction form
    9,267.41/12,787.15 = 5,287.79/x
  3. Step 3: Cross multiply
    9,267.41x = 12,787.15 × 5,287.79
  4. Step 4: Simplify right side
    9,267.41x = 67,615,763.90
  5. Step 5: Solve for x
    x = 67,615,763.90/9,267.41
  6. Step 6: Final answer
    x = 7,296.08

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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.