Home / 7,854.40-10,839.54-4,317.88

Finding the Fourth Proportional to 7,854.40, 10,839.54 and 4,317.88

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Solution

The fourth proportional to 7,854.40, 10,839.54 and 4,317.88 is: 5,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.40 : 10,839.54 = 4,317.88 : x
  2. Step 2: Convert to fraction form
    7,854.40/10,839.54 = 4,317.88/x
  3. Step 3: Cross multiply
    7,854.40x = 10,839.54 × 4,317.88
  4. Step 4: Simplify right side
    7,854.40x = 46,803,832.98
  5. Step 5: Solve for x
    x = 46,803,832.98/7,854.40
  6. Step 6: Final answer
    x = 5,958.93

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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.