Home / 13,883.09-19,159.17-7,913.80

Finding the Fourth Proportional to 13,883.09, 19,159.17 and 7,913.80

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Solution

The fourth proportional to 13,883.09, 19,159.17 and 7,913.80 is: 10,921.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.09 : 19,159.17 = 7,913.80 : x
  2. Step 2: Convert to fraction form
    13,883.09/19,159.17 = 7,913.80/x
  3. Step 3: Cross multiply
    13,883.09x = 19,159.17 × 7,913.80
  4. Step 4: Simplify right side
    13,883.09x = 151,621,743.75
  5. Step 5: Solve for x
    x = 151,621,743.75/13,883.09
  6. Step 6: Final answer
    x = 10,921.33

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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.