Home / 18,219.09-27,323.40-7,691.48

Finding the Fourth Proportional to 18,219.09, 27,323.40 and 7,691.48

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Solution

The fourth proportional to 18,219.09, 27,323.40 and 7,691.48 is: 11,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.09 : 27,323.40 = 7,691.48 : x
  2. Step 2: Convert to fraction form
    18,219.09/27,323.40 = 7,691.48/x
  3. Step 3: Cross multiply
    18,219.09x = 27,323.40 × 7,691.48
  4. Step 4: Simplify right side
    18,219.09x = 210,157,248.02
  5. Step 5: Solve for x
    x = 210,157,248.02/18,219.09
  6. Step 6: Final answer
    x = 11,535.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.