Home / 10,971.28-15,140.28-6,257.08

Finding the Fourth Proportional to 10,971.28, 15,140.28 and 6,257.08

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Solution

The fourth proportional to 10,971.28, 15,140.28 and 6,257.08 is: 8,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.28 : 15,140.28 = 6,257.08 : x
  2. Step 2: Convert to fraction form
    10,971.28/15,140.28 = 6,257.08/x
  3. Step 3: Cross multiply
    10,971.28x = 15,140.28 × 6,257.08
  4. Step 4: Simplify right side
    10,971.28x = 94,733,943.18
  5. Step 5: Solve for x
    x = 94,733,943.18/10,971.28
  6. Step 6: Final answer
    x = 8,634.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.