Home / 15,900.15-21,941.10-8,826.02

Finding the Fourth Proportional to 15,900.15, 21,941.10 and 8,826.02

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Solution

The fourth proportional to 15,900.15, 21,941.10 and 8,826.02 is: 12,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.15 : 21,941.10 = 8,826.02 : x
  2. Step 2: Convert to fraction form
    15,900.15/21,941.10 = 8,826.02/x
  3. Step 3: Cross multiply
    15,900.15x = 21,941.10 × 8,826.02
  4. Step 4: Simplify right side
    15,900.15x = 193,652,560.00
  5. Step 5: Solve for x
    x = 193,652,560.00/15,900.15
  6. Step 6: Final answer
    x = 12,179.29

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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.