Home / 7,854.91-10,839.63-4,318.05

Finding the Fourth Proportional to 7,854.91, 10,839.63 and 4,318.05

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Solution

The fourth proportional to 7,854.91, 10,839.63 and 4,318.05 is: 5,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.91 : 10,839.63 = 4,318.05 : x
  2. Step 2: Convert to fraction form
    7,854.91/10,839.63 = 4,318.05/x
  3. Step 3: Cross multiply
    7,854.91x = 10,839.63 × 4,318.05
  4. Step 4: Simplify right side
    7,854.91x = 46,806,064.32
  5. Step 5: Solve for x
    x = 46,806,064.32/7,854.91
  6. Step 6: Final answer
    x = 5,958.83

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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.