Home / 18,851.28-26,012.48-11,193.36

Finding the Fourth Proportional to 18,851.28, 26,012.48 and 11,193.36

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Solution

The fourth proportional to 18,851.28, 26,012.48 and 11,193.36 is: 15,445.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.28 : 26,012.48 = 11,193.36 : x
  2. Step 2: Convert to fraction form
    18,851.28/26,012.48 = 11,193.36/x
  3. Step 3: Cross multiply
    18,851.28x = 26,012.48 × 11,193.36
  4. Step 4: Simplify right side
    18,851.28x = 291,167,053.13
  5. Step 5: Solve for x
    x = 291,167,053.13/18,851.28
  6. Step 6: Final answer
    x = 15,445.48

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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.