Home / 12,536.42-18,780.40-6,972.94

Finding the Fourth Proportional to 12,536.42, 18,780.40 and 6,972.94

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Solution

The fourth proportional to 12,536.42, 18,780.40 and 6,972.94 is: 10,445.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.42 : 18,780.40 = 6,972.94 : x
  2. Step 2: Convert to fraction form
    12,536.42/18,780.40 = 6,972.94/x
  3. Step 3: Cross multiply
    12,536.42x = 18,780.40 × 6,972.94
  4. Step 4: Simplify right side
    12,536.42x = 130,954,602.38
  5. Step 5: Solve for x
    x = 130,954,602.38/12,536.42
  6. Step 6: Final answer
    x = 10,445.93

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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.