Home / 10,648.33-15,970.29-10,121.47

Finding the Fourth Proportional to 10,648.33, 15,970.29 and 10,121.47

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Solution

The fourth proportional to 10,648.33, 15,970.29 and 10,121.47 is: 15,180.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,648.33 : 15,970.29 = 10,121.47 : x
  2. Step 2: Convert to fraction form
    10,648.33/15,970.29 = 10,121.47/x
  3. Step 3: Cross multiply
    10,648.33x = 15,970.29 × 10,121.47
  4. Step 4: Simplify right side
    10,648.33x = 161,642,811.13
  5. Step 5: Solve for x
    x = 161,642,811.13/10,648.33
  6. Step 6: Final answer
    x = 15,180.11

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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.