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Finding the Fourth Proportional to 7,915.53, 11,862.36 and 6,873.06

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Solution

The fourth proportional to 7,915.53, 11,862.36 and 6,873.06 is: 10,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.53 : 11,862.36 = 6,873.06 : x
  2. Step 2: Convert to fraction form
    7,915.53/11,862.36 = 6,873.06/x
  3. Step 3: Cross multiply
    7,915.53x = 11,862.36 × 6,873.06
  4. Step 4: Simplify right side
    7,915.53x = 81,530,712.02
  5. Step 5: Solve for x
    x = 81,530,712.02/7,915.53
  6. Step 6: Final answer
    x = 10,300.10

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1.5x scale

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.