Home / 11,316.88-15,617.32-6,348.88

Finding the Fourth Proportional to 11,316.88, 15,617.32 and 6,348.88

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Solution

The fourth proportional to 11,316.88, 15,617.32 and 6,348.88 is: 8,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.88 : 15,617.32 = 6,348.88 : x
  2. Step 2: Convert to fraction form
    11,316.88/15,617.32 = 6,348.88/x
  3. Step 3: Cross multiply
    11,316.88x = 15,617.32 × 6,348.88
  4. Step 4: Simplify right side
    11,316.88x = 99,152,490.60
  5. Step 5: Solve for x
    x = 99,152,490.60/11,316.88
  6. Step 6: Final answer
    x = 8,761.47

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1.5x scale

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.