Home / 12,560.34-18,843.66-8,869.79

Finding the Fourth Proportional to 12,560.34, 18,843.66 and 8,869.79

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Solution

The fourth proportional to 12,560.34, 18,843.66 and 8,869.79 is: 13,306.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.34 : 18,843.66 = 8,869.79 : x
  2. Step 2: Convert to fraction form
    12,560.34/18,843.66 = 8,869.79/x
  3. Step 3: Cross multiply
    12,560.34x = 18,843.66 × 8,869.79
  4. Step 4: Simplify right side
    12,560.34x = 167,139,212.81
  5. Step 5: Solve for x
    x = 167,139,212.81/12,560.34
  6. Step 6: Final answer
    x = 13,306.90

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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.