Home / 13,632.18-18,812.44-7,663.90

Finding the Fourth Proportional to 13,632.18, 18,812.44 and 7,663.90

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Solution

The fourth proportional to 13,632.18, 18,812.44 and 7,663.90 is: 10,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.18 : 18,812.44 = 7,663.90 : x
  2. Step 2: Convert to fraction form
    13,632.18/18,812.44 = 7,663.90/x
  3. Step 3: Cross multiply
    13,632.18x = 18,812.44 × 7,663.90
  4. Step 4: Simplify right side
    13,632.18x = 144,176,658.92
  5. Step 5: Solve for x
    x = 144,176,658.92/13,632.18
  6. Step 6: Final answer
    x = 10,576.20

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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.