Home / 18,688.36-28,044.42-7,002.76

Finding the Fourth Proportional to 18,688.36, 28,044.42 and 7,002.76

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Solution

The fourth proportional to 18,688.36, 28,044.42 and 7,002.76 is: 10,508.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.36 : 28,044.42 = 7,002.76 : x
  2. Step 2: Convert to fraction form
    18,688.36/28,044.42 = 7,002.76/x
  3. Step 3: Cross multiply
    18,688.36x = 28,044.42 × 7,002.76
  4. Step 4: Simplify right side
    18,688.36x = 196,388,342.60
  5. Step 5: Solve for x
    x = 196,388,342.60/18,688.36
  6. Step 6: Final answer
    x = 10,508.59

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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.