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Finding the Fourth Proportional to 8,673.28, 11,971 and 5,484.54

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Solution

The fourth proportional to 8,673.28, 11,971 and 5,484.54 is: 7,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.28 : 11,971 = 5,484.54 : x
  2. Step 2: Convert to fraction form
    8,673.28/11,971 = 5,484.54/x
  3. Step 3: Cross multiply
    8,673.28x = 11,971 × 5,484.54
  4. Step 4: Simplify right side
    8,673.28x = 65,655,428.34
  5. Step 5: Solve for x
    x = 65,655,428.34/8,673.28
  6. Step 6: Final answer
    x = 7,569.85

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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.