Home / 14,981.04-20,672.28-8,692.20

Finding the Fourth Proportional to 14,981.04, 20,672.28 and 8,692.20

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Solution

The fourth proportional to 14,981.04, 20,672.28 and 8,692.20 is: 11,994.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.04 : 20,672.28 = 8,692.20 : x
  2. Step 2: Convert to fraction form
    14,981.04/20,672.28 = 8,692.20/x
  3. Step 3: Cross multiply
    14,981.04x = 20,672.28 × 8,692.20
  4. Step 4: Simplify right side
    14,981.04x = 179,687,592.22
  5. Step 5: Solve for x
    x = 179,687,592.22/14,981.04
  6. Step 6: Final answer
    x = 11,994.33

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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.