Home / 10,926.80-16,373.40-8,140.40

Finding the Fourth Proportional to 10,926.80, 16,373.40 and 8,140.40

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Solution

The fourth proportional to 10,926.80, 16,373.40 and 8,140.40 is: 12,198.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.80 : 16,373.40 = 8,140.40 : x
  2. Step 2: Convert to fraction form
    10,926.80/16,373.40 = 8,140.40/x
  3. Step 3: Cross multiply
    10,926.80x = 16,373.40 × 8,140.40
  4. Step 4: Simplify right side
    10,926.80x = 133,286,025.36
  5. Step 5: Solve for x
    x = 133,286,025.36/10,926.80
  6. Step 6: Final answer
    x = 12,198.08

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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.