Home / 15,995.50-22,074.88-8,921.86

Finding the Fourth Proportional to 15,995.50, 22,074.88 and 8,921.86

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Solution

The fourth proportional to 15,995.50, 22,074.88 and 8,921.86 is: 12,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,995.50 : 22,074.88 = 8,921.86 : x
  2. Step 2: Convert to fraction form
    15,995.50/22,074.88 = 8,921.86/x
  3. Step 3: Cross multiply
    15,995.50x = 22,074.88 × 8,921.86
  4. Step 4: Simplify right side
    15,995.50x = 196,948,988.88
  5. Step 5: Solve for x
    x = 196,948,988.88/15,995.50
  6. Step 6: Final answer
    x = 12,312.77

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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.