Home / 18,511.47-25,519.26-13,197.06

Finding the Fourth Proportional to 18,511.47, 25,519.26 and 13,197.06

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Solution

The fourth proportional to 18,511.47, 25,519.26 and 13,197.06 is: 18,193.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.47 : 25,519.26 = 13,197.06 : x
  2. Step 2: Convert to fraction form
    18,511.47/25,519.26 = 13,197.06/x
  3. Step 3: Cross multiply
    18,511.47x = 25,519.26 × 13,197.06
  4. Step 4: Simplify right side
    18,511.47x = 336,779,350.56
  5. Step 5: Solve for x
    x = 336,779,350.56/18,511.47
  6. Step 6: Final answer
    x = 18,193.01

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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.