Home / 19,612.40-27,079.20-12,068.88

Finding the Fourth Proportional to 19,612.40, 27,079.20 and 12,068.88

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Solution

The fourth proportional to 19,612.40, 27,079.20 and 12,068.88 is: 16,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.40 : 27,079.20 = 12,068.88 : x
  2. Step 2: Convert to fraction form
    19,612.40/27,079.20 = 12,068.88/x
  3. Step 3: Cross multiply
    19,612.40x = 27,079.20 × 12,068.88
  4. Step 4: Simplify right side
    19,612.40x = 326,815,615.30
  5. Step 5: Solve for x
    x = 326,815,615.30/19,612.40
  6. Step 6: Final answer
    x = 16,663.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.