Home / 8,320.20-11,483.81-5,488.08

Finding the Fourth Proportional to 8,320.20, 11,483.81 and 5,488.08

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Solution

The fourth proportional to 8,320.20, 11,483.81 and 5,488.08 is: 7,574.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.20 : 11,483.81 = 5,488.08 : x
  2. Step 2: Convert to fraction form
    8,320.20/11,483.81 = 5,488.08/x
  3. Step 3: Cross multiply
    8,320.20x = 11,483.81 × 5,488.08
  4. Step 4: Simplify right side
    8,320.20x = 63,024,067.98
  5. Step 5: Solve for x
    x = 63,024,067.98/8,320.20
  6. Step 6: Final answer
    x = 7,574.83

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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.