Home / 10,915.28-15,062.68-6,673.44

Finding the Fourth Proportional to 10,915.28, 15,062.68 and 6,673.44

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Solution

The fourth proportional to 10,915.28, 15,062.68 and 6,673.44 is: 9,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.28 : 15,062.68 = 6,673.44 : x
  2. Step 2: Convert to fraction form
    10,915.28/15,062.68 = 6,673.44/x
  3. Step 3: Cross multiply
    10,915.28x = 15,062.68 × 6,673.44
  4. Step 4: Simplify right side
    10,915.28x = 100,519,891.22
  5. Step 5: Solve for x
    x = 100,519,891.22/10,915.28
  6. Step 6: Final answer
    x = 9,209.10

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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.