Home / 12,690,526.56-17,511,078.76-7,256,968.80

Finding the Fourth Proportional to 12,690,526.56, 17,511,078.76 and 7,256,968.80

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Solution

The fourth proportional to 12,690,526.56, 17,511,078.76 and 7,256,968.80 is: 10,013,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690,526.56 : 17,511,078.76 = 7,256,968.80 : x
  2. Step 2: Convert to fraction form
    12,690,526.56/17,511,078.76 = 7,256,968.80/x
  3. Step 3: Cross multiply
    12,690,526.56x = 17,511,078.76 × 7,256,968.80
  4. Step 4: Simplify right side
    12,690,526.56x = 127,077,352,215,662.70
  5. Step 5: Solve for x
    x = 127,077,352,215,662.70/12,690,526.56
  6. Step 6: Final answer
    x = 10,013,560.24

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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.