Home / 13,953.20-20,886.60-8,092.40

Finding the Fourth Proportional to 13,953.20, 20,886.60 and 8,092.40

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Solution

The fourth proportional to 13,953.20, 20,886.60 and 8,092.40 is: 12,113.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.20 : 20,886.60 = 8,092.40 : x
  2. Step 2: Convert to fraction form
    13,953.20/20,886.60 = 8,092.40/x
  3. Step 3: Cross multiply
    13,953.20x = 20,886.60 × 8,092.40
  4. Step 4: Simplify right side
    13,953.20x = 169,022,721.84
  5. Step 5: Solve for x
    x = 169,022,721.84/13,953.20
  6. Step 6: Final answer
    x = 12,113.55

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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.