Home / 15,001.78-20,703.32-9,035.38

Finding the Fourth Proportional to 15,001.78, 20,703.32 and 9,035.38

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Solution

The fourth proportional to 15,001.78, 20,703.32 and 9,035.38 is: 12,469.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,001.78 : 20,703.32 = 9,035.38 : x
  2. Step 2: Convert to fraction form
    15,001.78/20,703.32 = 9,035.38/x
  3. Step 3: Cross multiply
    15,001.78x = 20,703.32 × 9,035.38
  4. Step 4: Simplify right side
    15,001.78x = 187,062,363.46
  5. Step 5: Solve for x
    x = 187,062,363.46/15,001.78
  6. Step 6: Final answer
    x = 12,469.34

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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.