Home / 10,925.20-16,387.80-10,860.40

Finding the Fourth Proportional to 10,925.20, 16,387.80 and 10,860.40

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Solution

The fourth proportional to 10,925.20, 16,387.80 and 10,860.40 is: 16,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.20 : 16,387.80 = 10,860.40 : x
  2. Step 2: Convert to fraction form
    10,925.20/16,387.80 = 10,860.40/x
  3. Step 3: Cross multiply
    10,925.20x = 16,387.80 × 10,860.40
  4. Step 4: Simplify right side
    10,925.20x = 177,978,063.12
  5. Step 5: Solve for x
    x = 177,978,063.12/10,925.20
  6. Step 6: Final answer
    x = 16,290.60

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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.