Home / 15,585.04-21,493.11-12,182.50

Finding the Fourth Proportional to 15,585.04, 21,493.11 and 12,182.50

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Solution

The fourth proportional to 15,585.04, 21,493.11 and 12,182.50 is: 16,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.04 : 21,493.11 = 12,182.50 : x
  2. Step 2: Convert to fraction form
    15,585.04/21,493.11 = 12,182.50/x
  3. Step 3: Cross multiply
    15,585.04x = 21,493.11 × 12,182.50
  4. Step 4: Simplify right side
    15,585.04x = 261,839,812.58
  5. Step 5: Solve for x
    x = 261,839,812.58/15,585.04
  6. Step 6: Final answer
    x = 16,800.71

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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.