Home / 11,561.28-15,954.48-9,045.96

Finding the Fourth Proportional to 11,561.28, 15,954.48 and 9,045.96

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Solution

The fourth proportional to 11,561.28, 15,954.48 and 9,045.96 is: 12,483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.28 : 15,954.48 = 9,045.96 : x
  2. Step 2: Convert to fraction form
    11,561.28/15,954.48 = 9,045.96/x
  3. Step 3: Cross multiply
    11,561.28x = 15,954.48 × 9,045.96
  4. Step 4: Simplify right side
    11,561.28x = 144,323,587.90
  5. Step 5: Solve for x
    x = 144,323,587.90/11,561.28
  6. Step 6: Final answer
    x = 12,483.36

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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.