Home / 15,904.20-21,946.69-8,830.06

Finding the Fourth Proportional to 15,904.20, 21,946.69 and 8,830.06

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Solution

The fourth proportional to 15,904.20, 21,946.69 and 8,830.06 is: 12,184.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,904.20 : 21,946.69 = 8,830.06 : x
  2. Step 2: Convert to fraction form
    15,904.20/21,946.69 = 8,830.06/x
  3. Step 3: Cross multiply
    15,904.20x = 21,946.69 × 8,830.06
  4. Step 4: Simplify right side
    15,904.20x = 193,790,589.50
  5. Step 5: Solve for x
    x = 193,790,589.50/15,904.20
  6. Step 6: Final answer
    x = 12,184.87

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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.