Home / 14,869.70-20,518.28-8,153.55

Finding the Fourth Proportional to 14,869.70, 20,518.28 and 8,153.55

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Solution

The fourth proportional to 14,869.70, 20,518.28 and 8,153.55 is: 11,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.70 : 20,518.28 = 8,153.55 : x
  2. Step 2: Convert to fraction form
    14,869.70/20,518.28 = 8,153.55/x
  3. Step 3: Cross multiply
    14,869.70x = 20,518.28 × 8,153.55
  4. Step 4: Simplify right side
    14,869.70x = 167,296,781.13
  5. Step 5: Solve for x
    x = 167,296,781.13/14,869.70
  6. Step 6: Final answer
    x = 11,250.85

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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.