Home / 13,915.68-20,884.56-12,275.52

Finding the Fourth Proportional to 13,915.68, 20,884.56 and 12,275.52

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Solution

The fourth proportional to 13,915.68, 20,884.56 and 12,275.52 is: 18,423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.68 : 20,884.56 = 12,275.52 : x
  2. Step 2: Convert to fraction form
    13,915.68/20,884.56 = 12,275.52/x
  3. Step 3: Cross multiply
    13,915.68x = 20,884.56 × 12,275.52
  4. Step 4: Simplify right side
    13,915.68x = 256,368,833.97
  5. Step 5: Solve for x
    x = 256,368,833.97/13,915.68
  6. Step 6: Final answer
    x = 18,423.02

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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.