Home / 10,981.20-15,052.40-10,833.60

Finding the Fourth Proportional to 10,981.20, 15,052.40 and 10,833.60

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Solution

The fourth proportional to 10,981.20, 15,052.40 and 10,833.60 is: 14,850.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.20 : 15,052.40 = 10,833.60 : x
  2. Step 2: Convert to fraction form
    10,981.20/15,052.40 = 10,833.60/x
  3. Step 3: Cross multiply
    10,981.20x = 15,052.40 × 10,833.60
  4. Step 4: Simplify right side
    10,981.20x = 163,071,680.64
  5. Step 5: Solve for x
    x = 163,071,680.64/10,981.20
  6. Step 6: Final answer
    x = 14,850.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.