Home / 27,126.08-40,689.12-7,404.20

Finding the Fourth Proportional to 27,126.08, 40,689.12 and 7,404.20

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Solution

The fourth proportional to 27,126.08, 40,689.12 and 7,404.20 is: 11,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,126.08 : 40,689.12 = 7,404.20 : x
  2. Step 2: Convert to fraction form
    27,126.08/40,689.12 = 7,404.20/x
  3. Step 3: Cross multiply
    27,126.08x = 40,689.12 × 7,404.20
  4. Step 4: Simplify right side
    27,126.08x = 301,270,382.30
  5. Step 5: Solve for x
    x = 301,270,382.30/27,126.08
  6. Step 6: Final answer
    x = 11,106.30

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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.