Home / 15,309.12-22,963.04-4,920.64

Finding the Fourth Proportional to 15,309.12, 22,963.04 and 4,920.64

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Solution

The fourth proportional to 15,309.12, 22,963.04 and 4,920.64 is: 7,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.12 : 22,963.04 = 4,920.64 : x
  2. Step 2: Convert to fraction form
    15,309.12/22,963.04 = 4,920.64/x
  3. Step 3: Cross multiply
    15,309.12x = 22,963.04 × 4,920.64
  4. Step 4: Simplify right side
    15,309.12x = 112,992,853.15
  5. Step 5: Solve for x
    x = 112,992,853.15/15,309.12
  6. Step 6: Final answer
    x = 7,380.75

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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.