Home / 18,680.56-28,017.90-5,168.54

Finding the Fourth Proportional to 18,680.56, 28,017.90 and 5,168.54

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Solution

The fourth proportional to 18,680.56, 28,017.90 and 5,168.54 is: 7,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.56 : 28,017.90 = 5,168.54 : x
  2. Step 2: Convert to fraction form
    18,680.56/28,017.90 = 5,168.54/x
  3. Step 3: Cross multiply
    18,680.56x = 28,017.90 × 5,168.54
  4. Step 4: Simplify right side
    18,680.56x = 144,811,706.91
  5. Step 5: Solve for x
    x = 144,811,706.91/18,680.56
  6. Step 6: Final answer
    x = 7,752.00

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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.