Home / 12,944.23-19,402.87-8,784.57

Finding the Fourth Proportional to 12,944.23, 19,402.87 and 8,784.57

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Solution

The fourth proportional to 12,944.23, 19,402.87 and 8,784.57 is: 13,167.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.23 : 19,402.87 = 8,784.57 : x
  2. Step 2: Convert to fraction form
    12,944.23/19,402.87 = 8,784.57/x
  3. Step 3: Cross multiply
    12,944.23x = 19,402.87 × 8,784.57
  4. Step 4: Simplify right side
    12,944.23x = 170,445,869.72
  5. Step 5: Solve for x
    x = 170,445,869.72/12,944.23
  6. Step 6: Final answer
    x = 13,167.71

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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.