Home / 18,688.50-28,032.75-7,007.22

Finding the Fourth Proportional to 18,688.50, 28,032.75 and 7,007.22

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Solution

The fourth proportional to 18,688.50, 28,032.75 and 7,007.22 is: 10,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.50 : 28,032.75 = 7,007.22 : x
  2. Step 2: Convert to fraction form
    18,688.50/28,032.75 = 7,007.22/x
  3. Step 3: Cross multiply
    18,688.50x = 28,032.75 × 7,007.22
  4. Step 4: Simplify right side
    18,688.50x = 196,431,646.46
  5. Step 5: Solve for x
    x = 196,431,646.46/18,688.50
  6. Step 6: Final answer
    x = 10,510.83

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Similar ratio
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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.