Home / 13,586.20-18,747.66-7,616.50

Finding the Fourth Proportional to 13,586.20, 18,747.66 and 7,616.50

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Solution

The fourth proportional to 13,586.20, 18,747.66 and 7,616.50 is: 10,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.20 : 18,747.66 = 7,616.50 : x
  2. Step 2: Convert to fraction form
    13,586.20/18,747.66 = 7,616.50/x
  3. Step 3: Cross multiply
    13,586.20x = 18,747.66 × 7,616.50
  4. Step 4: Simplify right side
    13,586.20x = 142,791,552.39
  5. Step 5: Solve for x
    x = 142,791,552.39/13,586.20
  6. Step 6: Final answer
    x = 10,510.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.