Home / 13,022.60-17,972.30-7,358.39

Finding the Fourth Proportional to 13,022.60, 17,972.30 and 7,358.39

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Solution

The fourth proportional to 13,022.60, 17,972.30 and 7,358.39 is: 10,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,022.60 : 17,972.30 = 7,358.39 : x
  2. Step 2: Convert to fraction form
    13,022.60/17,972.30 = 7,358.39/x
  3. Step 3: Cross multiply
    13,022.60x = 17,972.30 × 7,358.39
  4. Step 4: Simplify right side
    13,022.60x = 132,247,192.60
  5. Step 5: Solve for x
    x = 132,247,192.60/13,022.60
  6. Step 6: Final answer
    x = 10,155.21

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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.