Home / 12,986,241.04-17,916,660.75-7,479,505.63

Finding the Fourth Proportional to 12,986,241.04, 17,916,660.75 and 7,479,505.63

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Solution

The fourth proportional to 12,986,241.04, 17,916,660.75 and 7,479,505.63 is: 10,319,211.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986,241.04 : 17,916,660.75 = 7,479,505.63 : x
  2. Step 2: Convert to fraction form
    12,986,241.04/17,916,660.75 = 7,479,505.63/x
  3. Step 3: Cross multiply
    12,986,241.04x = 17,916,660.75 × 7,479,505.63
  4. Step 4: Simplify right side
    12,986,241.04x = 134,007,764,950,425.02
  5. Step 5: Solve for x
    x = 134,007,764,950,425.02/12,986,241.04
  6. Step 6: Final answer
    x = 10,319,211.27

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Double scale
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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.