Home / 13,744.05-18,966.87-7,456.42

Finding the Fourth Proportional to 13,744.05, 18,966.87 and 7,456.42

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Solution

The fourth proportional to 13,744.05, 18,966.87 and 7,456.42 is: 10,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,744.05 : 18,966.87 = 7,456.42 : x
  2. Step 2: Convert to fraction form
    13,744.05/18,966.87 = 7,456.42/x
  3. Step 3: Cross multiply
    13,744.05x = 18,966.87 × 7,456.42
  4. Step 4: Simplify right side
    13,744.05x = 141,424,948.81
  5. Step 5: Solve for x
    x = 141,424,948.81/13,744.05
  6. Step 6: Final answer
    x = 10,289.90

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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.