Home / 12,528.39-18,795.49-3,643.93

Finding the Fourth Proportional to 12,528.39, 18,795.49 and 3,643.93

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Solution

The fourth proportional to 12,528.39, 18,795.49 and 3,643.93 is: 5,466.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.39 : 18,795.49 = 3,643.93 : x
  2. Step 2: Convert to fraction form
    12,528.39/18,795.49 = 3,643.93/x
  3. Step 3: Cross multiply
    12,528.39x = 18,795.49 × 3,643.93
  4. Step 4: Simplify right side
    12,528.39x = 68,489,440.77
  5. Step 5: Solve for x
    x = 68,489,440.77/12,528.39
  6. Step 6: Final answer
    x = 5,466.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.