Home / 6,616.08-9,139.68-5,288.04

Finding the Fourth Proportional to 6,616.08, 9,139.68 and 5,288.04

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Solution

The fourth proportional to 6,616.08, 9,139.68 and 5,288.04 is: 7,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.08 : 9,139.68 = 5,288.04 : x
  2. Step 2: Convert to fraction form
    6,616.08/9,139.68 = 5,288.04/x
  3. Step 3: Cross multiply
    6,616.08x = 9,139.68 × 5,288.04
  4. Step 4: Simplify right side
    6,616.08x = 48,330,993.43
  5. Step 5: Solve for x
    x = 48,330,993.43/6,616.08
  6. Step 6: Final answer
    x = 7,305.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.