Home / 12,877.20-19,267.20-8,503.20

Finding the Fourth Proportional to 12,877.20, 19,267.20 and 8,503.20

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Solution

The fourth proportional to 12,877.20, 19,267.20 and 8,503.20 is: 12,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.20 : 19,267.20 = 8,503.20 : x
  2. Step 2: Convert to fraction form
    12,877.20/19,267.20 = 8,503.20/x
  3. Step 3: Cross multiply
    12,877.20x = 19,267.20 × 8,503.20
  4. Step 4: Simplify right side
    12,877.20x = 163,832,855.04
  5. Step 5: Solve for x
    x = 163,832,855.04/12,877.20
  6. Step 6: Final answer
    x = 12,722.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.