Home / 13,436.28-18,541.74-7,467.90

Finding the Fourth Proportional to 13,436.28, 18,541.74 and 7,467.90

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Solution

The fourth proportional to 13,436.28, 18,541.74 and 7,467.90 is: 10,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.28 : 18,541.74 = 7,467.90 : x
  2. Step 2: Convert to fraction form
    13,436.28/18,541.74 = 7,467.90/x
  3. Step 3: Cross multiply
    13,436.28x = 18,541.74 × 7,467.90
  4. Step 4: Simplify right side
    13,436.28x = 138,467,818.62
  5. Step 5: Solve for x
    x = 138,467,818.62/13,436.28
  6. Step 6: Final answer
    x = 10,305.52

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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.