Home / 13,325.20-18,388.41-7,356.76

Finding the Fourth Proportional to 13,325.20, 18,388.41 and 7,356.76

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Solution

The fourth proportional to 13,325.20, 18,388.41 and 7,356.76 is: 10,152.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.20 : 18,388.41 = 7,356.76 : x
  2. Step 2: Convert to fraction form
    13,325.20/18,388.41 = 7,356.76/x
  3. Step 3: Cross multiply
    13,325.20x = 18,388.41 × 7,356.76
  4. Step 4: Simplify right side
    13,325.20x = 135,279,119.15
  5. Step 5: Solve for x
    x = 135,279,119.15/13,325.20
  6. Step 6: Final answer
    x = 10,152.13

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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.