Home / 7,854.70-10,839.40-4,317.96

Finding the Fourth Proportional to 7,854.70, 10,839.40 and 4,317.96

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Solution

The fourth proportional to 7,854.70, 10,839.40 and 4,317.96 is: 5,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.70 : 10,839.40 = 4,317.96 : x
  2. Step 2: Convert to fraction form
    7,854.70/10,839.40 = 4,317.96/x
  3. Step 3: Cross multiply
    7,854.70x = 10,839.40 × 4,317.96
  4. Step 4: Simplify right side
    7,854.70x = 46,804,095.62
  5. Step 5: Solve for x
    x = 46,804,095.62/7,854.70
  6. Step 6: Final answer
    x = 5,958.74

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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.