Home / 9,151.12-13,724.58-5,454.40

Finding the Fourth Proportional to 9,151.12, 13,724.58 and 5,454.40

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Solution

The fourth proportional to 9,151.12, 13,724.58 and 5,454.40 is: 8,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.12 : 13,724.58 = 5,454.40 : x
  2. Step 2: Convert to fraction form
    9,151.12/13,724.58 = 5,454.40/x
  3. Step 3: Cross multiply
    9,151.12x = 13,724.58 × 5,454.40
  4. Step 4: Simplify right side
    9,151.12x = 74,859,349.15
  5. Step 5: Solve for x
    x = 74,859,349.15/9,151.12
  6. Step 6: Final answer
    x = 8,180.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.