Home / 7,155.30-10,713.14-5,394.97

Finding the Fourth Proportional to 7,155.30, 10,713.14 and 5,394.97

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Solution

The fourth proportional to 7,155.30, 10,713.14 and 5,394.97 is: 8,077.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.30 : 10,713.14 = 5,394.97 : x
  2. Step 2: Convert to fraction form
    7,155.30/10,713.14 = 5,394.97/x
  3. Step 3: Cross multiply
    7,155.30x = 10,713.14 × 5,394.97
  4. Step 4: Simplify right side
    7,155.30x = 57,797,068.91
  5. Step 5: Solve for x
    x = 57,797,068.91/7,155.30
  6. Step 6: Final answer
    x = 8,077.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.