Home / 18,107.32-27,168.72-10,215.76

Finding the Fourth Proportional to 18,107.32, 27,168.72 and 10,215.76

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Solution

The fourth proportional to 18,107.32, 27,168.72 and 10,215.76 is: 15,328.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.32 : 27,168.72 = 10,215.76 : x
  2. Step 2: Convert to fraction form
    18,107.32/27,168.72 = 10,215.76/x
  3. Step 3: Cross multiply
    18,107.32x = 27,168.72 × 10,215.76
  4. Step 4: Simplify right side
    18,107.32x = 277,549,123.03
  5. Step 5: Solve for x
    x = 277,549,123.03/18,107.32
  6. Step 6: Final answer
    x = 15,328.01

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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.