Home / 12,047.28-18,079.79-5,722.18

Finding the Fourth Proportional to 12,047.28, 18,079.79 and 5,722.18

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Solution

The fourth proportional to 12,047.28, 18,079.79 and 5,722.18 is: 8,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.28 : 18,079.79 = 5,722.18 : x
  2. Step 2: Convert to fraction form
    12,047.28/18,079.79 = 5,722.18/x
  3. Step 3: Cross multiply
    12,047.28x = 18,079.79 × 5,722.18
  4. Step 4: Simplify right side
    12,047.28x = 103,455,812.74
  5. Step 5: Solve for x
    x = 103,455,812.74/12,047.28
  6. Step 6: Final answer
    x = 8,587.48

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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.