Home / 15,791.10-23,688.90-5,257.68

Finding the Fourth Proportional to 15,791.10, 23,688.90 and 5,257.68

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Solution

The fourth proportional to 15,791.10, 23,688.90 and 5,257.68 is: 7,887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.10 : 23,688.90 = 5,257.68 : x
  2. Step 2: Convert to fraction form
    15,791.10/23,688.90 = 5,257.68/x
  3. Step 3: Cross multiply
    15,791.10x = 23,688.90 × 5,257.68
  4. Step 4: Simplify right side
    15,791.10x = 124,548,655.75
  5. Step 5: Solve for x
    x = 124,548,655.75/15,791.10
  6. Step 6: Final answer
    x = 7,887.27

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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.