Home / 15,868.56-21,899.90-8,797.26

Finding the Fourth Proportional to 15,868.56, 21,899.90 and 8,797.26

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Solution

The fourth proportional to 15,868.56, 21,899.90 and 8,797.26 is: 12,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.56 : 21,899.90 = 8,797.26 : x
  2. Step 2: Convert to fraction form
    15,868.56/21,899.90 = 8,797.26/x
  3. Step 3: Cross multiply
    15,868.56x = 21,899.90 × 8,797.26
  4. Step 4: Simplify right side
    15,868.56x = 192,659,114.27
  5. Step 5: Solve for x
    x = 192,659,114.27/15,868.56
  6. Step 6: Final answer
    x = 12,140.93

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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.