Home / 15,540.84-21,442.95-9,163.02

Finding the Fourth Proportional to 15,540.84, 21,442.95 and 9,163.02

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Solution

The fourth proportional to 15,540.84, 21,442.95 and 9,163.02 is: 12,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540.84 : 21,442.95 = 9,163.02 : x
  2. Step 2: Convert to fraction form
    15,540.84/21,442.95 = 9,163.02/x
  3. Step 3: Cross multiply
    15,540.84x = 21,442.95 × 9,163.02
  4. Step 4: Simplify right side
    15,540.84x = 196,482,179.71
  5. Step 5: Solve for x
    x = 196,482,179.71/15,540.84
  6. Step 6: Final answer
    x = 12,642.96

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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.