Home / 15,218.20-22,827.30-12,885.40

Finding the Fourth Proportional to 15,218.20, 22,827.30 and 12,885.40

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Solution

The fourth proportional to 15,218.20, 22,827.30 and 12,885.40 is: 19,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218.20 : 22,827.30 = 12,885.40 : x
  2. Step 2: Convert to fraction form
    15,218.20/22,827.30 = 12,885.40/x
  3. Step 3: Cross multiply
    15,218.20x = 22,827.30 × 12,885.40
  4. Step 4: Simplify right side
    15,218.20x = 294,138,891.42
  5. Step 5: Solve for x
    x = 294,138,891.42/15,218.20
  6. Step 6: Final answer
    x = 19,328.10

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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.