Home / 9,148.91-12,618.52-7,874.95

Finding the Fourth Proportional to 9,148.91, 12,618.52 and 7,874.95

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Solution

The fourth proportional to 9,148.91, 12,618.52 and 7,874.95 is: 10,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.91 : 12,618.52 = 7,874.95 : x
  2. Step 2: Convert to fraction form
    9,148.91/12,618.52 = 7,874.95/x
  3. Step 3: Cross multiply
    9,148.91x = 12,618.52 × 7,874.95
  4. Step 4: Simplify right side
    9,148.91x = 99,370,239.69
  5. Step 5: Solve for x
    x = 99,370,239.69/9,148.91
  6. Step 6: Final answer
    x = 10,861.44

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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.