Home / 11,548.78-15,943.44-8,890.36

Finding the Fourth Proportional to 11,548.78, 15,943.44 and 8,890.36

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Solution

The fourth proportional to 11,548.78, 15,943.44 and 8,890.36 is: 12,273.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,548.78 : 15,943.44 = 8,890.36 : x
  2. Step 2: Convert to fraction form
    11,548.78/15,943.44 = 8,890.36/x
  3. Step 3: Cross multiply
    11,548.78x = 15,943.44 × 8,890.36
  4. Step 4: Simplify right side
    11,548.78x = 141,742,921.24
  5. Step 5: Solve for x
    x = 141,742,921.24/11,548.78
  6. Step 6: Final answer
    x = 12,273.41

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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.