Home / 12,536.47-18,799.85-6,689.89

Finding the Fourth Proportional to 12,536.47, 18,799.85 and 6,689.89

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Solution

The fourth proportional to 12,536.47, 18,799.85 and 6,689.89 is: 10,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.47 : 18,799.85 = 6,689.89 : x
  2. Step 2: Convert to fraction form
    12,536.47/18,799.85 = 6,689.89/x
  3. Step 3: Cross multiply
    12,536.47x = 18,799.85 × 6,689.89
  4. Step 4: Simplify right side
    12,536.47x = 125,768,895.07
  5. Step 5: Solve for x
    x = 125,768,895.07/12,536.47
  6. Step 6: Final answer
    x = 10,032.24

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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.