Home / 13,320,306.04-18,382,022.12-7,208,734.56

Finding the Fourth Proportional to 13,320,306.04, 18,382,022.12 and 7,208,734.56

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Solution

The fourth proportional to 13,320,306.04, 18,382,022.12 and 7,208,734.56 is: 9,948,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,306.04 : 18,382,022.12 = 7,208,734.56 : x
  2. Step 2: Convert to fraction form
    13,320,306.04/18,382,022.12 = 7,208,734.56/x
  3. Step 3: Cross multiply
    13,320,306.04x = 18,382,022.12 × 7,208,734.56
  4. Step 4: Simplify right side
    13,320,306.04x = 132,511,118,139,128.47
  5. Step 5: Solve for x
    x = 132,511,118,139,128.47/13,320,306.04
  6. Step 6: Final answer
    x = 9,948,053.58

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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.