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Finding the Fourth Proportional to 10,904.54, 15,052.78 and 7,372.54

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Solution

The fourth proportional to 10,904.54, 15,052.78 and 7,372.54 is: 10,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.54 : 15,052.78 = 7,372.54 : x
  2. Step 2: Convert to fraction form
    10,904.54/15,052.78 = 7,372.54/x
  3. Step 3: Cross multiply
    10,904.54x = 15,052.78 × 7,372.54
  4. Step 4: Simplify right side
    10,904.54x = 110,977,222.66
  5. Step 5: Solve for x
    x = 110,977,222.66/10,904.54
  6. Step 6: Final answer
    x = 10,177.16

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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.