Home / 11,888.87-16,373.55-9,190.14

Finding the Fourth Proportional to 11,888.87, 16,373.55 and 9,190.14

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Solution

The fourth proportional to 11,888.87, 16,373.55 and 9,190.14 is: 12,656.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.87 : 16,373.55 = 9,190.14 : x
  2. Step 2: Convert to fraction form
    11,888.87/16,373.55 = 9,190.14/x
  3. Step 3: Cross multiply
    11,888.87x = 16,373.55 × 9,190.14
  4. Step 4: Simplify right side
    11,888.87x = 150,475,216.80
  5. Step 5: Solve for x
    x = 150,475,216.80/11,888.87
  6. Step 6: Final answer
    x = 12,656.82

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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.