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Finding the Fourth Proportional to 11,132.51, 15,365.03 and 7,355.88

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Solution

The fourth proportional to 11,132.51, 15,365.03 and 7,355.88 is: 10,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.51 : 15,365.03 = 7,355.88 : x
  2. Step 2: Convert to fraction form
    11,132.51/15,365.03 = 7,355.88/x
  3. Step 3: Cross multiply
    11,132.51x = 15,365.03 × 7,355.88
  4. Step 4: Simplify right side
    11,132.51x = 113,023,280.10
  5. Step 5: Solve for x
    x = 113,023,280.10/11,132.51
  6. Step 6: Final answer
    x = 10,152.55

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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.