Home / 10,278.63-15,417.81-2,487.38

Finding the Fourth Proportional to 10,278.63, 15,417.81 and 2,487.38

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Solution

The fourth proportional to 10,278.63, 15,417.81 and 2,487.38 is: 3,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.63 : 15,417.81 = 2,487.38 : x
  2. Step 2: Convert to fraction form
    10,278.63/15,417.81 = 2,487.38/x
  3. Step 3: Cross multiply
    10,278.63x = 15,417.81 × 2,487.38
  4. Step 4: Simplify right side
    10,278.63x = 38,349,875.15
  5. Step 5: Solve for x
    x = 38,349,875.15/10,278.63
  6. Step 6: Final answer
    x = 3,731.03

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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.