Home / 9,289.38-12,818.13-5,511.95

Finding the Fourth Proportional to 9,289.38, 12,818.13 and 5,511.95

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Solution

The fourth proportional to 9,289.38, 12,818.13 and 5,511.95 is: 7,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.38 : 12,818.13 = 5,511.95 : x
  2. Step 2: Convert to fraction form
    9,289.38/12,818.13 = 5,511.95/x
  3. Step 3: Cross multiply
    9,289.38x = 12,818.13 × 5,511.95
  4. Step 4: Simplify right side
    9,289.38x = 70,652,827.56
  5. Step 5: Solve for x
    x = 70,652,827.56/9,289.38
  6. Step 6: Final answer
    x = 7,605.76

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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.