Home / 12,689,439.74-17,511,449.06-6,888,225.42

Finding the Fourth Proportional to 12,689,439.74, 17,511,449.06 and 6,888,225.42

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Solution

The fourth proportional to 12,689,439.74, 17,511,449.06 and 6,888,225.42 is: 9,505,763.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,439.74 : 17,511,449.06 = 6,888,225.42 : x
  2. Step 2: Convert to fraction form
    12,689,439.74/17,511,449.06 = 6,888,225.42/x
  3. Step 3: Cross multiply
    12,689,439.74x = 17,511,449.06 × 6,888,225.42
  4. Step 4: Simplify right side
    12,689,439.74x = 120,622,808,556,127.09
  5. Step 5: Solve for x
    x = 120,622,808,556,127.09/12,689,439.74
  6. Step 6: Final answer
    x = 9,505,763.14

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1.5x scale

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.