Home / 9,018.20-12,454.62-6,901.40

Finding the Fourth Proportional to 9,018.20, 12,454.62 and 6,901.40

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Solution

The fourth proportional to 9,018.20, 12,454.62 and 6,901.40 is: 9,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.20 : 12,454.62 = 6,901.40 : x
  2. Step 2: Convert to fraction form
    9,018.20/12,454.62 = 6,901.40/x
  3. Step 3: Cross multiply
    9,018.20x = 12,454.62 × 6,901.40
  4. Step 4: Simplify right side
    9,018.20x = 85,954,314.47
  5. Step 5: Solve for x
    x = 85,954,314.47/9,018.20
  6. Step 6: Final answer
    x = 9,531.21

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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.