Home / 7,854.28-10,839.11-4,317.58

Finding the Fourth Proportional to 7,854.28, 10,839.11 and 4,317.58

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Solution

The fourth proportional to 7,854.28, 10,839.11 and 4,317.58 is: 5,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.28 : 10,839.11 = 4,317.58 : x
  2. Step 2: Convert to fraction form
    7,854.28/10,839.11 = 4,317.58/x
  3. Step 3: Cross multiply
    7,854.28x = 10,839.11 × 4,317.58
  4. Step 4: Simplify right side
    7,854.28x = 46,798,724.55
  5. Step 5: Solve for x
    x = 46,798,724.55/7,854.28
  6. Step 6: Final answer
    x = 5,958.37

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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.