Home / 15,275.18-22,915.49-7,877.64

Finding the Fourth Proportional to 15,275.18, 22,915.49 and 7,877.64

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Solution

The fourth proportional to 15,275.18, 22,915.49 and 7,877.64 is: 11,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.18 : 22,915.49 = 7,877.64 : x
  2. Step 2: Convert to fraction form
    15,275.18/22,915.49 = 7,877.64/x
  3. Step 3: Cross multiply
    15,275.18x = 22,915.49 × 7,877.64
  4. Step 4: Simplify right side
    15,275.18x = 180,519,980.64
  5. Step 5: Solve for x
    x = 180,519,980.64/15,275.18
  6. Step 6: Final answer
    x = 11,817.86

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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.