Home / 18,215.64-27,304.02-13,005.72

Finding the Fourth Proportional to 18,215.64, 27,304.02 and 13,005.72

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Solution

The fourth proportional to 18,215.64, 27,304.02 and 13,005.72 is: 19,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.64 : 27,304.02 = 13,005.72 : x
  2. Step 2: Convert to fraction form
    18,215.64/27,304.02 = 13,005.72/x
  3. Step 3: Cross multiply
    18,215.64x = 27,304.02 × 13,005.72
  4. Step 4: Simplify right side
    18,215.64x = 355,108,438.99
  5. Step 5: Solve for x
    x = 355,108,438.99/18,215.64
  6. Step 6: Final answer
    x = 19,494.70

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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.