Home / 15,638.46-23,455.20-5,108.39

Finding the Fourth Proportional to 15,638.46, 23,455.20 and 5,108.39

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Solution

The fourth proportional to 15,638.46, 23,455.20 and 5,108.39 is: 7,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.46 : 23,455.20 = 5,108.39 : x
  2. Step 2: Convert to fraction form
    15,638.46/23,455.20 = 5,108.39/x
  3. Step 3: Cross multiply
    15,638.46x = 23,455.20 × 5,108.39
  4. Step 4: Simplify right side
    15,638.46x = 119,818,191.85
  5. Step 5: Solve for x
    x = 119,818,191.85/15,638.46
  6. Step 6: Final answer
    x = 7,661.76

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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.