Home / 15,988.12-22,063.73-8,818.29

Finding the Fourth Proportional to 15,988.12, 22,063.73 and 8,818.29

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Solution

The fourth proportional to 15,988.12, 22,063.73 and 8,818.29 is: 12,169.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.12 : 22,063.73 = 8,818.29 : x
  2. Step 2: Convert to fraction form
    15,988.12/22,063.73 = 8,818.29/x
  3. Step 3: Cross multiply
    15,988.12x = 22,063.73 × 8,818.29
  4. Step 4: Simplify right side
    15,988.12x = 194,564,369.62
  5. Step 5: Solve for x
    x = 194,564,369.62/15,988.12
  6. Step 6: Final answer
    x = 12,169.31

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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.