Home / 13,298.36-18,351.50-7,330.05

Finding the Fourth Proportional to 13,298.36, 18,351.50 and 7,330.05

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Solution

The fourth proportional to 13,298.36, 18,351.50 and 7,330.05 is: 10,115.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.36 : 18,351.50 = 7,330.05 : x
  2. Step 2: Convert to fraction form
    13,298.36/18,351.50 = 7,330.05/x
  3. Step 3: Cross multiply
    13,298.36x = 18,351.50 × 7,330.05
  4. Step 4: Simplify right side
    13,298.36x = 134,517,375.92
  5. Step 5: Solve for x
    x = 134,517,375.92/13,298.36
  6. Step 6: Final answer
    x = 10,115.34

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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.