Home / 13,309.36-19,948.09-5,905.47

Finding the Fourth Proportional to 13,309.36, 19,948.09 and 5,905.47

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Solution

The fourth proportional to 13,309.36, 19,948.09 and 5,905.47 is: 8,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.36 : 19,948.09 = 5,905.47 : x
  2. Step 2: Convert to fraction form
    13,309.36/19,948.09 = 5,905.47/x
  3. Step 3: Cross multiply
    13,309.36x = 19,948.09 × 5,905.47
  4. Step 4: Simplify right side
    13,309.36x = 117,802,847.05
  5. Step 5: Solve for x
    x = 117,802,847.05/13,309.36
  6. Step 6: Final answer
    x = 8,851.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.