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Finding the Fourth Proportional to 8,335.95, 11,505.15 and 5,355.51

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Solution

The fourth proportional to 8,335.95, 11,505.15 and 5,355.51 is: 7,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.95 : 11,505.15 = 5,355.51 : x
  2. Step 2: Convert to fraction form
    8,335.95/11,505.15 = 5,355.51/x
  3. Step 3: Cross multiply
    8,335.95x = 11,505.15 × 5,355.51
  4. Step 4: Simplify right side
    8,335.95x = 61,615,945.88
  5. Step 5: Solve for x
    x = 61,615,945.88/8,335.95
  6. Step 6: Final answer
    x = 7,391.59

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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.