Home / 18,781.44-25,916.96-10,397.76

Finding the Fourth Proportional to 18,781.44, 25,916.96 and 10,397.76

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Solution

The fourth proportional to 18,781.44, 25,916.96 and 10,397.76 is: 14,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.44 : 25,916.96 = 10,397.76 : x
  2. Step 2: Convert to fraction form
    18,781.44/25,916.96 = 10,397.76/x
  3. Step 3: Cross multiply
    18,781.44x = 25,916.96 × 10,397.76
  4. Step 4: Simplify right side
    18,781.44x = 269,478,330.01
  5. Step 5: Solve for x
    x = 269,478,330.01/18,781.44
  6. Step 6: Final answer
    x = 14,348.12

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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.