Home / 18,204.12-27,312.72-7,118.76

Finding the Fourth Proportional to 18,204.12, 27,312.72 and 7,118.76

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Solution

The fourth proportional to 18,204.12, 27,312.72 and 7,118.76 is: 10,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.12 : 27,312.72 = 7,118.76 : x
  2. Step 2: Convert to fraction form
    18,204.12/27,312.72 = 7,118.76/x
  3. Step 3: Cross multiply
    18,204.12x = 27,312.72 × 7,118.76
  4. Step 4: Simplify right side
    18,204.12x = 194,432,698.63
  5. Step 5: Solve for x
    x = 194,432,698.63/18,204.12
  6. Step 6: Final answer
    x = 10,680.70

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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.