Home / 9,320.90-12,864.69-5,344.70

Finding the Fourth Proportional to 9,320.90, 12,864.69 and 5,344.70

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Solution

The fourth proportional to 9,320.90, 12,864.69 and 5,344.70 is: 7,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.90 : 12,864.69 = 5,344.70 : x
  2. Step 2: Convert to fraction form
    9,320.90/12,864.69 = 5,344.70/x
  3. Step 3: Cross multiply
    9,320.90x = 12,864.69 × 5,344.70
  4. Step 4: Simplify right side
    9,320.90x = 68,757,844.32
  5. Step 5: Solve for x
    x = 68,757,844.32/9,320.90
  6. Step 6: Final answer
    x = 7,376.74

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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.