Home / 10,278.38-15,417.81-4,736.36

Finding the Fourth Proportional to 10,278.38, 15,417.81 and 4,736.36

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Solution

The fourth proportional to 10,278.38, 15,417.81 and 4,736.36 is: 7,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.38 : 15,417.81 = 4,736.36 : x
  2. Step 2: Convert to fraction form
    10,278.38/15,417.81 = 4,736.36/x
  3. Step 3: Cross multiply
    10,278.38x = 15,417.81 × 4,736.36
  4. Step 4: Simplify right side
    10,278.38x = 73,024,298.57
  5. Step 5: Solve for x
    x = 73,024,298.57/10,278.38
  6. Step 6: Final answer
    x = 7,104.65

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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.