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Finding the Fourth Proportional to 10,915.47, 15,062.90 and 6,200.19

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Solution

The fourth proportional to 10,915.47, 15,062.90 and 6,200.19 is: 8,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.47 : 15,062.90 = 6,200.19 : x
  2. Step 2: Convert to fraction form
    10,915.47/15,062.90 = 6,200.19/x
  3. Step 3: Cross multiply
    10,915.47x = 15,062.90 × 6,200.19
  4. Step 4: Simplify right side
    10,915.47x = 93,392,810.95
  5. Step 5: Solve for x
    x = 93,392,810.95/10,915.47
  6. Step 6: Final answer
    x = 8,556.00

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