Home / 10,079.60-15,119.64-3,838.80

Finding the Fourth Proportional to 10,079.60, 15,119.64 and 3,838.80

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Solution

The fourth proportional to 10,079.60, 15,119.64 and 3,838.80 is: 5,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.60 : 15,119.64 = 3,838.80 : x
  2. Step 2: Convert to fraction form
    10,079.60/15,119.64 = 3,838.80/x
  3. Step 3: Cross multiply
    10,079.60x = 15,119.64 × 3,838.80
  4. Step 4: Simplify right side
    10,079.60x = 58,041,274.03
  5. Step 5: Solve for x
    x = 58,041,274.03/10,079.60
  6. Step 6: Final answer
    x = 5,758.29

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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.