Home / 18,385.48-25,373.35-11,214.75

Finding the Fourth Proportional to 18,385.48, 25,373.35 and 11,214.75

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Solution

The fourth proportional to 18,385.48, 25,373.35 and 11,214.75 is: 15,477.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.48 : 25,373.35 = 11,214.75 : x
  2. Step 2: Convert to fraction form
    18,385.48/25,373.35 = 11,214.75/x
  3. Step 3: Cross multiply
    18,385.48x = 25,373.35 × 11,214.75
  4. Step 4: Simplify right side
    18,385.48x = 284,555,886.08
  5. Step 5: Solve for x
    x = 284,555,886.08/18,385.48
  6. Step 6: Final answer
    x = 15,477.21

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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.