Home / 17,276.60-25,915.32-12,921.72

Finding the Fourth Proportional to 17,276.60, 25,915.32 and 12,921.72

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Solution

The fourth proportional to 17,276.60, 25,915.32 and 12,921.72 is: 19,382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,276.60 : 25,915.32 = 12,921.72 : x
  2. Step 2: Convert to fraction form
    17,276.60/25,915.32 = 12,921.72/x
  3. Step 3: Cross multiply
    17,276.60x = 25,915.32 × 12,921.72
  4. Step 4: Simplify right side
    17,276.60x = 334,870,508.75
  5. Step 5: Solve for x
    x = 334,870,508.75/17,276.60
  6. Step 6: Final answer
    x = 19,382.89

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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.