Home / 7,565.43-10,439.71-4,378.72

Finding the Fourth Proportional to 7,565.43, 10,439.71 and 4,378.72

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Solution

The fourth proportional to 7,565.43, 10,439.71 and 4,378.72 is: 6,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,565.43 : 10,439.71 = 4,378.72 : x
  2. Step 2: Convert to fraction form
    7,565.43/10,439.71 = 4,378.72/x
  3. Step 3: Cross multiply
    7,565.43x = 10,439.71 × 4,378.72
  4. Step 4: Simplify right side
    7,565.43x = 45,712,566.97
  5. Step 5: Solve for x
    x = 45,712,566.97/7,565.43
  6. Step 6: Final answer
    x = 6,042.30

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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.