Home / 14,869.40-20,519.46-8,155.04

Finding the Fourth Proportional to 14,869.40, 20,519.46 and 8,155.04

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Solution

The fourth proportional to 14,869.40, 20,519.46 and 8,155.04 is: 11,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,869.40 : 20,519.46 = 8,155.04 : x
  2. Step 2: Convert to fraction form
    14,869.40/20,519.46 = 8,155.04/x
  3. Step 3: Cross multiply
    14,869.40x = 20,519.46 × 8,155.04
  4. Step 4: Simplify right side
    14,869.40x = 167,337,017.08
  5. Step 5: Solve for x
    x = 167,337,017.08/14,869.40
  6. Step 6: Final answer
    x = 11,253.78

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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.