Home / 11,089.78-15,305.25-6,374.06

Finding the Fourth Proportional to 11,089.78, 15,305.25 and 6,374.06

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Solution

The fourth proportional to 11,089.78, 15,305.25 and 6,374.06 is: 8,796.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.78 : 15,305.25 = 6,374.06 : x
  2. Step 2: Convert to fraction form
    11,089.78/15,305.25 = 6,374.06/x
  3. Step 3: Cross multiply
    11,089.78x = 15,305.25 × 6,374.06
  4. Step 4: Simplify right side
    11,089.78x = 97,556,581.82
  5. Step 5: Solve for x
    x = 97,556,581.82/11,089.78
  6. Step 6: Final answer
    x = 8,796.98

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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.