Home / 10,126.84-15,191.78-3,551.87

Finding the Fourth Proportional to 10,126.84, 15,191.78 and 3,551.87

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Solution

The fourth proportional to 10,126.84, 15,191.78 and 3,551.87 is: 5,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.84 : 15,191.78 = 3,551.87 : x
  2. Step 2: Convert to fraction form
    10,126.84/15,191.78 = 3,551.87/x
  3. Step 3: Cross multiply
    10,126.84x = 15,191.78 × 3,551.87
  4. Step 4: Simplify right side
    10,126.84x = 53,959,172.38
  5. Step 5: Solve for x
    x = 53,959,172.38/10,126.84
  6. Step 6: Final answer
    x = 5,328.33

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1.5x scale

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.