Home / 18,425.12-27,639.12-6,581.45

Finding the Fourth Proportional to 18,425.12, 27,639.12 and 6,581.45

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Solution

The fourth proportional to 18,425.12, 27,639.12 and 6,581.45 is: 9,872.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.12 : 27,639.12 = 6,581.45 : x
  2. Step 2: Convert to fraction form
    18,425.12/27,639.12 = 6,581.45/x
  3. Step 3: Cross multiply
    18,425.12x = 27,639.12 × 6,581.45
  4. Step 4: Simplify right side
    18,425.12x = 181,905,369.10
  5. Step 5: Solve for x
    x = 181,905,369.10/18,425.12
  6. Step 6: Final answer
    x = 9,872.69

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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.