Home / 11,867.18-16,376.18-6,561.68

Finding the Fourth Proportional to 11,867.18, 16,376.18 and 6,561.68

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Solution

The fourth proportional to 11,867.18, 16,376.18 and 6,561.68 is: 9,054.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.18 : 16,376.18 = 6,561.68 : x
  2. Step 2: Convert to fraction form
    11,867.18/16,376.18 = 6,561.68/x
  3. Step 3: Cross multiply
    11,867.18x = 16,376.18 × 6,561.68
  4. Step 4: Simplify right side
    11,867.18x = 107,455,138.09
  5. Step 5: Solve for x
    x = 107,455,138.09/11,867.18
  6. Step 6: Final answer
    x = 9,054.82

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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.