Home / 15,972.88-22,042.58-8,899.76

Finding the Fourth Proportional to 15,972.88, 22,042.58 and 8,899.76

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Solution

The fourth proportional to 15,972.88, 22,042.58 and 8,899.76 is: 12,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.88 : 22,042.58 = 8,899.76 : x
  2. Step 2: Convert to fraction form
    15,972.88/22,042.58 = 8,899.76/x
  3. Step 3: Cross multiply
    15,972.88x = 22,042.58 × 8,899.76
  4. Step 4: Simplify right side
    15,972.88x = 196,173,671.78
  5. Step 5: Solve for x
    x = 196,173,671.78/15,972.88
  6. Step 6: Final answer
    x = 12,281.67

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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.