Home / 12,948,486.24-17,868,912-7,147,269.48

Finding the Fourth Proportional to 12,948,486.24, 17,868,912 and 7,147,269.48

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Solution

The fourth proportional to 12,948,486.24, 17,868,912 and 7,147,269.48 is: 9,863,232.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,486.24 : 17,868,912 = 7,147,269.48 : x
  2. Step 2: Convert to fraction form
    12,948,486.24/17,868,912 = 7,147,269.48/x
  3. Step 3: Cross multiply
    12,948,486.24x = 17,868,912 × 7,147,269.48
  4. Step 4: Simplify right side
    12,948,486.24x = 127,713,929,378,405.77
  5. Step 5: Solve for x
    x = 127,713,929,378,405.77/12,948,486.24
  6. Step 6: Final answer
    x = 9,863,232.43

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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.