Home / 7,869.39-10,859.51-4,332.57

Finding the Fourth Proportional to 7,869.39, 10,859.51 and 4,332.57

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Solution

The fourth proportional to 7,869.39, 10,859.51 and 4,332.57 is: 5,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.39 : 10,859.51 = 4,332.57 : x
  2. Step 2: Convert to fraction form
    7,869.39/10,859.51 = 4,332.57/x
  3. Step 3: Cross multiply
    7,869.39x = 10,859.51 × 4,332.57
  4. Step 4: Simplify right side
    7,869.39x = 47,049,565.58
  5. Step 5: Solve for x
    x = 47,049,565.58/7,869.39
  6. Step 6: Final answer
    x = 5,978.81

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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.