Home / 8,974.29-12,384.32-5,618.95

Finding the Fourth Proportional to 8,974.29, 12,384.32 and 5,618.95

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Solution

The fourth proportional to 8,974.29, 12,384.32 and 5,618.95 is: 7,754.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.29 : 12,384.32 = 5,618.95 : x
  2. Step 2: Convert to fraction form
    8,974.29/12,384.32 = 5,618.95/x
  3. Step 3: Cross multiply
    8,974.29x = 12,384.32 × 5,618.95
  4. Step 4: Simplify right side
    8,974.29x = 69,586,877.73
  5. Step 5: Solve for x
    x = 69,586,877.73/8,974.29
  6. Step 6: Final answer
    x = 7,754.03

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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.