Home / 8,974.23-13,461.35-3,126.75

Finding the Fourth Proportional to 8,974.23, 13,461.35 and 3,126.75

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Solution

The fourth proportional to 8,974.23, 13,461.35 and 3,126.75 is: 4,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.23 : 13,461.35 = 3,126.75 : x
  2. Step 2: Convert to fraction form
    8,974.23/13,461.35 = 3,126.75/x
  3. Step 3: Cross multiply
    8,974.23x = 13,461.35 × 3,126.75
  4. Step 4: Simplify right side
    8,974.23x = 42,090,260.48
  5. Step 5: Solve for x
    x = 42,090,260.48/8,974.23
  6. Step 6: Final answer
    x = 4,690.13

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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.