Home / 12,558.66-17,320.44-9,151.02

Finding the Fourth Proportional to 12,558.66, 17,320.44 and 9,151.02

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Solution

The fourth proportional to 12,558.66, 17,320.44 and 9,151.02 is: 12,620.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.66 : 17,320.44 = 9,151.02 : x
  2. Step 2: Convert to fraction form
    12,558.66/17,320.44 = 9,151.02/x
  3. Step 3: Cross multiply
    12,558.66x = 17,320.44 × 9,151.02
  4. Step 4: Simplify right side
    12,558.66x = 158,499,692.85
  5. Step 5: Solve for x
    x = 158,499,692.85/12,558.66
  6. Step 6: Final answer
    x = 12,620.75

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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.