Home / 16,946.20-25,443.60-12,815.20

Finding the Fourth Proportional to 16,946.20, 25,443.60 and 12,815.20

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Solution

The fourth proportional to 16,946.20, 25,443.60 and 12,815.20 is: 19,241.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,946.20 : 25,443.60 = 12,815.20 : x
  2. Step 2: Convert to fraction form
    16,946.20/25,443.60 = 12,815.20/x
  3. Step 3: Cross multiply
    16,946.20x = 25,443.60 × 12,815.20
  4. Step 4: Simplify right side
    16,946.20x = 326,064,822.72
  5. Step 5: Solve for x
    x = 326,064,822.72/16,946.20
  6. Step 6: Final answer
    x = 19,241.18

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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.