Home / 10,313.29-15,468.56-2,918.39

Finding the Fourth Proportional to 10,313.29, 15,468.56 and 2,918.39

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Solution

The fourth proportional to 10,313.29, 15,468.56 and 2,918.39 is: 4,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,313.29 : 15,468.56 = 2,918.39 : x
  2. Step 2: Convert to fraction form
    10,313.29/15,468.56 = 2,918.39/x
  3. Step 3: Cross multiply
    10,313.29x = 15,468.56 × 2,918.39
  4. Step 4: Simplify right side
    10,313.29x = 45,143,276.23
  5. Step 5: Solve for x
    x = 45,143,276.23/10,313.29
  6. Step 6: Final answer
    x = 4,377.20

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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.