Home / 15,647.72-23,455.17-5,780.70

Finding the Fourth Proportional to 15,647.72, 23,455.17 and 5,780.70

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Solution

The fourth proportional to 15,647.72, 23,455.17 and 5,780.70 is: 8,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.72 : 23,455.17 = 5,780.70 : x
  2. Step 2: Convert to fraction form
    15,647.72/23,455.17 = 5,780.70/x
  3. Step 3: Cross multiply
    15,647.72x = 23,455.17 × 5,780.70
  4. Step 4: Simplify right side
    15,647.72x = 135,587,301.22
  5. Step 5: Solve for x
    x = 135,587,301.22/15,647.72
  6. Step 6: Final answer
    x = 8,664.99

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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.