Home / 10,133.20-15,199.80-9,969.18

Finding the Fourth Proportional to 10,133.20, 15,199.80 and 9,969.18

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Solution

The fourth proportional to 10,133.20, 15,199.80 and 9,969.18 is: 14,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,133.20 : 15,199.80 = 9,969.18 : x
  2. Step 2: Convert to fraction form
    10,133.20/15,199.80 = 9,969.18/x
  3. Step 3: Cross multiply
    10,133.20x = 15,199.80 × 9,969.18
  4. Step 4: Simplify right side
    10,133.20x = 151,529,542.16
  5. Step 5: Solve for x
    x = 151,529,542.16/10,133.20
  6. Step 6: Final answer
    x = 14,953.77

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Similar ratio
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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.