Home / 10,123.68-15,186.96-4,926

Finding the Fourth Proportional to 10,123.68, 15,186.96 and 4,926

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Solution

The fourth proportional to 10,123.68, 15,186.96 and 4,926 is: 7,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.68 : 15,186.96 = 4,926 : x
  2. Step 2: Convert to fraction form
    10,123.68/15,186.96 = 4,926/x
  3. Step 3: Cross multiply
    10,123.68x = 15,186.96 × 4,926
  4. Step 4: Simplify right side
    10,123.68x = 74,810,964.96
  5. Step 5: Solve for x
    x = 74,810,964.96/10,123.68
  6. Step 6: Final answer
    x = 7,389.70

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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.