Home / 13,545,879.56-18,693,326.46-7,744,782.78

Finding the Fourth Proportional to 13,545,879.56, 18,693,326.46 and 7,744,782.78

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Solution

The fourth proportional to 13,545,879.56, 18,693,326.46 and 7,744,782.78 is: 10,687,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545,879.56 : 18,693,326.46 = 7,744,782.78 : x
  2. Step 2: Convert to fraction form
    13,545,879.56/18,693,326.46 = 7,744,782.78/x
  3. Step 3: Cross multiply
    13,545,879.56x = 18,693,326.46 × 7,744,782.78
  4. Step 4: Simplify right side
    13,545,879.56x = 144,775,752,801,224.31
  5. Step 5: Solve for x
    x = 144,775,752,801,224.31/13,545,879.56
  6. Step 6: Final answer
    x = 10,687,807.48

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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.