Home / 8,990.08-13,486.98-2,749.72

Finding the Fourth Proportional to 8,990.08, 13,486.98 and 2,749.72

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Solution

The fourth proportional to 8,990.08, 13,486.98 and 2,749.72 is: 4,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.08 : 13,486.98 = 2,749.72 : x
  2. Step 2: Convert to fraction form
    8,990.08/13,486.98 = 2,749.72/x
  3. Step 3: Cross multiply
    8,990.08x = 13,486.98 × 2,749.72
  4. Step 4: Simplify right side
    8,990.08x = 37,085,418.65
  5. Step 5: Solve for x
    x = 37,085,418.65/8,990.08
  6. Step 6: Final answer
    x = 4,125.15

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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.