Home / 18,343.54-25,314.18-10,387.32

Finding the Fourth Proportional to 18,343.54, 25,314.18 and 10,387.32

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Solution

The fourth proportional to 18,343.54, 25,314.18 and 10,387.32 is: 14,334.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.54 : 25,314.18 = 10,387.32 : x
  2. Step 2: Convert to fraction form
    18,343.54/25,314.18 = 10,387.32/x
  3. Step 3: Cross multiply
    18,343.54x = 25,314.18 × 10,387.32
  4. Step 4: Simplify right side
    18,343.54x = 262,946,488.20
  5. Step 5: Solve for x
    x = 262,946,488.20/18,343.54
  6. Step 6: Final answer
    x = 14,334.56

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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.