Home / 12,691,711.14-18,995,466.96-11,557,095.54

Finding the Fourth Proportional to 12,691,711.14, 18,995,466.96 and 11,557,095.54

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Solution

The fourth proportional to 12,691,711.14, 18,995,466.96 and 11,557,095.54 is: 17,297,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691,711.14 : 18,995,466.96 = 11,557,095.54 : x
  2. Step 2: Convert to fraction form
    12,691,711.14/18,995,466.96 = 11,557,095.54/x
  3. Step 3: Cross multiply
    12,691,711.14x = 18,995,466.96 × 11,557,095.54
  4. Step 4: Simplify right side
    12,691,711.14x = 219,532,426,483,633.34
  5. Step 5: Solve for x
    x = 219,532,426,483,633.34/12,691,711.14
  6. Step 6: Final answer
    x = 17,297,307.20

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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.