Home / 8,541.71-11,788.37-5,355.51

Finding the Fourth Proportional to 8,541.71, 11,788.37 and 5,355.51

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Solution

The fourth proportional to 8,541.71, 11,788.37 and 5,355.51 is: 7,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.71 : 11,788.37 = 5,355.51 : x
  2. Step 2: Convert to fraction form
    8,541.71/11,788.37 = 5,355.51/x
  3. Step 3: Cross multiply
    8,541.71x = 11,788.37 × 5,355.51
  4. Step 4: Simplify right side
    8,541.71x = 63,132,733.42
  5. Step 5: Solve for x
    x = 63,132,733.42/8,541.71
  6. Step 6: Final answer
    x = 7,391.11

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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.