Home / 15,710.82-23,560.65-5,178.30

Finding the Fourth Proportional to 15,710.82, 23,560.65 and 5,178.30

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Solution

The fourth proportional to 15,710.82, 23,560.65 and 5,178.30 is: 7,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.82 : 23,560.65 = 5,178.30 : x
  2. Step 2: Convert to fraction form
    15,710.82/23,560.65 = 5,178.30/x
  3. Step 3: Cross multiply
    15,710.82x = 23,560.65 × 5,178.30
  4. Step 4: Simplify right side
    15,710.82x = 122,004,113.90
  5. Step 5: Solve for x
    x = 122,004,113.90/15,710.82
  6. Step 6: Final answer
    x = 7,765.61

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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.