Home / 15,884.26-21,919.30-8,810.54

Finding the Fourth Proportional to 15,884.26, 21,919.30 and 8,810.54

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Solution

The fourth proportional to 15,884.26, 21,919.30 and 8,810.54 is: 12,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,884.26 : 21,919.30 = 8,810.54 : x
  2. Step 2: Convert to fraction form
    15,884.26/21,919.30 = 8,810.54/x
  3. Step 3: Cross multiply
    15,884.26x = 21,919.30 × 8,810.54
  4. Step 4: Simplify right side
    15,884.26x = 193,120,869.42
  5. Step 5: Solve for x
    x = 193,120,869.42/15,884.26
  6. Step 6: Final answer
    x = 12,158.00

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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.