Home / 10,971.76-15,141.16-6,256.48

Finding the Fourth Proportional to 10,971.76, 15,141.16 and 6,256.48

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Solution

The fourth proportional to 10,971.76, 15,141.16 and 6,256.48 is: 8,634.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.76 : 15,141.16 = 6,256.48 : x
  2. Step 2: Convert to fraction form
    10,971.76/15,141.16 = 6,256.48/x
  3. Step 3: Cross multiply
    10,971.76x = 15,141.16 × 6,256.48
  4. Step 4: Simplify right side
    10,971.76x = 94,730,364.72
  5. Step 5: Solve for x
    x = 94,730,364.72/10,971.76
  6. Step 6: Final answer
    x = 8,634.02

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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.