Home / 14,661.33-20,226.33-8,689.79

Finding the Fourth Proportional to 14,661.33, 20,226.33 and 8,689.79

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Solution

The fourth proportional to 14,661.33, 20,226.33 and 8,689.79 is: 11,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,661.33 : 20,226.33 = 8,689.79 : x
  2. Step 2: Convert to fraction form
    14,661.33/20,226.33 = 8,689.79/x
  3. Step 3: Cross multiply
    14,661.33x = 20,226.33 × 8,689.79
  4. Step 4: Simplify right side
    14,661.33x = 175,762,663.62
  5. Step 5: Solve for x
    x = 175,762,663.62/14,661.33
  6. Step 6: Final answer
    x = 11,988.18

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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.