Home / 13,283.92-18,331.56-7,315.46

Finding the Fourth Proportional to 13,283.92, 18,331.56 and 7,315.46

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Solution

The fourth proportional to 13,283.92, 18,331.56 and 7,315.46 is: 10,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.92 : 18,331.56 = 7,315.46 : x
  2. Step 2: Convert to fraction form
    13,283.92/18,331.56 = 7,315.46/x
  3. Step 3: Cross multiply
    13,283.92x = 18,331.56 × 7,315.46
  4. Step 4: Simplify right side
    13,283.92x = 134,103,793.92
  5. Step 5: Solve for x
    x = 134,103,793.92/13,283.92
  6. Step 6: Final answer
    x = 10,095.20

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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.