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Finding the Fourth Proportional to 8,880.31, 13,316.59 and 4,719.31

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Solution

The fourth proportional to 8,880.31, 13,316.59 and 4,719.31 is: 7,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.31 : 13,316.59 = 4,719.31 : x
  2. Step 2: Convert to fraction form
    8,880.31/13,316.59 = 4,719.31/x
  3. Step 3: Cross multiply
    8,880.31x = 13,316.59 × 4,719.31
  4. Step 4: Simplify right side
    8,880.31x = 62,845,116.35
  5. Step 5: Solve for x
    x = 62,845,116.35/8,880.31
  6. Step 6: Final answer
    x = 7,076.91

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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.