Home / 15,622.88-21,559.77-8,549.15

Finding the Fourth Proportional to 15,622.88, 21,559.77 and 8,549.15

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Solution

The fourth proportional to 15,622.88, 21,559.77 and 8,549.15 is: 11,797.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.88 : 21,559.77 = 8,549.15 : x
  2. Step 2: Convert to fraction form
    15,622.88/21,559.77 = 8,549.15/x
  3. Step 3: Cross multiply
    15,622.88x = 21,559.77 × 8,549.15
  4. Step 4: Simplify right side
    15,622.88x = 184,317,599.90
  5. Step 5: Solve for x
    x = 184,317,599.90/15,622.88
  6. Step 6: Final answer
    x = 11,797.93

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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.