Home / 12,869.28-19,267.51-8,177.66

Finding the Fourth Proportional to 12,869.28, 19,267.51 and 8,177.66

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Solution

The fourth proportional to 12,869.28, 19,267.51 and 8,177.66 is: 12,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.28 : 19,267.51 = 8,177.66 : x
  2. Step 2: Convert to fraction form
    12,869.28/19,267.51 = 8,177.66/x
  3. Step 3: Cross multiply
    12,869.28x = 19,267.51 × 8,177.66
  4. Step 4: Simplify right side
    12,869.28x = 157,563,156.05
  5. Step 5: Solve for x
    x = 157,563,156.05/12,869.28
  6. Step 6: Final answer
    x = 12,243.35

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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.