Home / 8,743.14-12,065.76-5,158.28

Finding the Fourth Proportional to 8,743.14, 12,065.76 and 5,158.28

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Solution

The fourth proportional to 8,743.14, 12,065.76 and 5,158.28 is: 7,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.14 : 12,065.76 = 5,158.28 : x
  2. Step 2: Convert to fraction form
    8,743.14/12,065.76 = 5,158.28/x
  3. Step 3: Cross multiply
    8,743.14x = 12,065.76 × 5,158.28
  4. Step 4: Simplify right side
    8,743.14x = 62,238,598.66
  5. Step 5: Solve for x
    x = 62,238,598.66/8,743.14
  6. Step 6: Final answer
    x = 7,118.56

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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.