Home / 18,780.60-25,916.58-10,396.56

Finding the Fourth Proportional to 18,780.60, 25,916.58 and 10,396.56

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Solution

The fourth proportional to 18,780.60, 25,916.58 and 10,396.56 is: 14,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.60 : 25,916.58 = 10,396.56 : x
  2. Step 2: Convert to fraction form
    18,780.60/25,916.58 = 10,396.56/x
  3. Step 3: Cross multiply
    18,780.60x = 25,916.58 × 10,396.56
  4. Step 4: Simplify right side
    18,780.60x = 269,443,278.96
  5. Step 5: Solve for x
    x = 269,443,278.96/18,780.60
  6. Step 6: Final answer
    x = 14,346.89

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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.