Home / 9,212.15-13,818.69-2,639.30

Finding the Fourth Proportional to 9,212.15, 13,818.69 and 2,639.30

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Solution

The fourth proportional to 9,212.15, 13,818.69 and 2,639.30 is: 3,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.15 : 13,818.69 = 2,639.30 : x
  2. Step 2: Convert to fraction form
    9,212.15/13,818.69 = 2,639.30/x
  3. Step 3: Cross multiply
    9,212.15x = 13,818.69 × 2,639.30
  4. Step 4: Simplify right side
    9,212.15x = 36,471,599.42
  5. Step 5: Solve for x
    x = 36,471,599.42/9,212.15
  6. Step 6: Final answer
    x = 3,959.08

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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.