Home / 18,057.12-27,088.88-6,377.12

Finding the Fourth Proportional to 18,057.12, 27,088.88 and 6,377.12

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Solution

The fourth proportional to 18,057.12, 27,088.88 and 6,377.12 is: 9,566.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,057.12 : 27,088.88 = 6,377.12 : x
  2. Step 2: Convert to fraction form
    18,057.12/27,088.88 = 6,377.12/x
  3. Step 3: Cross multiply
    18,057.12x = 27,088.88 × 6,377.12
  4. Step 4: Simplify right side
    18,057.12x = 172,749,038.43
  5. Step 5: Solve for x
    x = 172,749,038.43/18,057.12
  6. Step 6: Final answer
    x = 9,566.81

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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.