Home / 9,211.95-13,818.42-2,639.13

Finding the Fourth Proportional to 9,211.95, 13,818.42 and 2,639.13

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Solution

The fourth proportional to 9,211.95, 13,818.42 and 2,639.13 is: 3,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.95 : 13,818.42 = 2,639.13 : x
  2. Step 2: Convert to fraction form
    9,211.95/13,818.42 = 2,639.13/x
  3. Step 3: Cross multiply
    9,211.95x = 13,818.42 × 2,639.13
  4. Step 4: Simplify right side
    9,211.95x = 36,468,606.77
  5. Step 5: Solve for x
    x = 36,468,606.77/9,211.95
  6. Step 6: Final answer
    x = 3,958.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.