Home / 18,977.31-26,181.36-11,425.68

Finding the Fourth Proportional to 18,977.31, 26,181.36 and 11,425.68

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Solution

The fourth proportional to 18,977.31, 26,181.36 and 11,425.68 is: 15,763.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.31 : 26,181.36 = 11,425.68 : x
  2. Step 2: Convert to fraction form
    18,977.31/26,181.36 = 11,425.68/x
  3. Step 3: Cross multiply
    18,977.31x = 26,181.36 × 11,425.68
  4. Step 4: Simplify right side
    18,977.31x = 299,139,841.32
  5. Step 5: Solve for x
    x = 299,139,841.32/18,977.31
  6. Step 6: Final answer
    x = 15,763.03

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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.