Home / 15,992.20-22,068.75-8,919.82

Finding the Fourth Proportional to 15,992.20, 22,068.75 and 8,919.82

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Solution

The fourth proportional to 15,992.20, 22,068.75 and 8,919.82 is: 12,309.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,992.20 : 22,068.75 = 8,919.82 : x
  2. Step 2: Convert to fraction form
    15,992.20/22,068.75 = 8,919.82/x
  3. Step 3: Cross multiply
    15,992.20x = 22,068.75 × 8,919.82
  4. Step 4: Simplify right side
    15,992.20x = 196,849,277.63
  5. Step 5: Solve for x
    x = 196,849,277.63/15,992.20
  6. Step 6: Final answer
    x = 12,309.08

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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.