Home / 15,230.18-20,996.98-10,686.69

Finding the Fourth Proportional to 15,230.18, 20,996.98 and 10,686.69

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Solution

The fourth proportional to 15,230.18, 20,996.98 and 10,686.69 is: 14,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.18 : 20,996.98 = 10,686.69 : x
  2. Step 2: Convert to fraction form
    15,230.18/20,996.98 = 10,686.69/x
  3. Step 3: Cross multiply
    15,230.18x = 20,996.98 × 10,686.69
  4. Step 4: Simplify right side
    15,230.18x = 224,388,110.74
  5. Step 5: Solve for x
    x = 224,388,110.74/15,230.18
  6. Step 6: Final answer
    x = 14,733.12

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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.