Home / 14,665.29-20,230.67-9,278.69

Finding the Fourth Proportional to 14,665.29, 20,230.67 and 9,278.69

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Solution

The fourth proportional to 14,665.29, 20,230.67 and 9,278.69 is: 12,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.29 : 20,230.67 = 9,278.69 : x
  2. Step 2: Convert to fraction form
    14,665.29/20,230.67 = 9,278.69/x
  3. Step 3: Cross multiply
    14,665.29x = 20,230.67 × 9,278.69
  4. Step 4: Simplify right side
    14,665.29x = 187,714,189.20
  5. Step 5: Solve for x
    x = 187,714,189.20/14,665.29
  6. Step 6: Final answer
    x = 12,799.89

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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.