Home / 13,385.92-18,473.28-7,418.24

Finding the Fourth Proportional to 13,385.92, 18,473.28 and 7,418.24

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Solution

The fourth proportional to 13,385.92, 18,473.28 and 7,418.24 is: 10,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.92 : 18,473.28 = 7,418.24 : x
  2. Step 2: Convert to fraction form
    13,385.92/18,473.28 = 7,418.24/x
  3. Step 3: Cross multiply
    13,385.92x = 18,473.28 × 7,418.24
  4. Step 4: Simplify right side
    13,385.92x = 137,039,224.63
  5. Step 5: Solve for x
    x = 137,039,224.63/13,385.92
  6. Step 6: Final answer
    x = 10,237.56

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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.