Home / 9,271.52-12,787.92-6,754.40

Finding the Fourth Proportional to 9,271.52, 12,787.92 and 6,754.40

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Solution

The fourth proportional to 9,271.52, 12,787.92 and 6,754.40 is: 9,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.52 : 12,787.92 = 6,754.40 : x
  2. Step 2: Convert to fraction form
    9,271.52/12,787.92 = 6,754.40/x
  3. Step 3: Cross multiply
    9,271.52x = 12,787.92 × 6,754.40
  4. Step 4: Simplify right side
    9,271.52x = 86,374,726.85
  5. Step 5: Solve for x
    x = 86,374,726.85/9,271.52
  6. Step 6: Final answer
    x = 9,316.13

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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.