Home / 15,604.12-21,535.16-8,891.92

Finding the Fourth Proportional to 15,604.12, 21,535.16 and 8,891.92

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Solution

The fourth proportional to 15,604.12, 21,535.16 and 8,891.92 is: 12,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.12 : 21,535.16 = 8,891.92 : x
  2. Step 2: Convert to fraction form
    15,604.12/21,535.16 = 8,891.92/x
  3. Step 3: Cross multiply
    15,604.12x = 21,535.16 × 8,891.92
  4. Step 4: Simplify right side
    15,604.12x = 191,488,919.91
  5. Step 5: Solve for x
    x = 191,488,919.91/15,604.12
  6. Step 6: Final answer
    x = 12,271.69

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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.