Home / 18,670.18-28,016.98-7,576.92

Finding the Fourth Proportional to 18,670.18, 28,016.98 and 7,576.92

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Solution

The fourth proportional to 18,670.18, 28,016.98 and 7,576.92 is: 11,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.18 : 28,016.98 = 7,576.92 : x
  2. Step 2: Convert to fraction form
    18,670.18/28,016.98 = 7,576.92/x
  3. Step 3: Cross multiply
    18,670.18x = 28,016.98 × 7,576.92
  4. Step 4: Simplify right side
    18,670.18x = 212,282,416.10
  5. Step 5: Solve for x
    x = 212,282,416.10/18,670.18
  6. Step 6: Final answer
    x = 11,370.13

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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.