Home / 13,293.18-18,343.88-7,324.70

Finding the Fourth Proportional to 13,293.18, 18,343.88 and 7,324.70

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Solution

The fourth proportional to 13,293.18, 18,343.88 and 7,324.70 is: 10,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.18 : 18,343.88 = 7,324.70 : x
  2. Step 2: Convert to fraction form
    13,293.18/18,343.88 = 7,324.70/x
  3. Step 3: Cross multiply
    13,293.18x = 18,343.88 × 7,324.70
  4. Step 4: Simplify right side
    13,293.18x = 134,363,417.84
  5. Step 5: Solve for x
    x = 134,363,417.84/13,293.18
  6. Step 6: Final answer
    x = 10,107.70

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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.