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Finding the Fourth Proportional to 9,063.76, 12,508 and 5,289.52

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Solution

The fourth proportional to 9,063.76, 12,508 and 5,289.52 is: 7,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.76 : 12,508 = 5,289.52 : x
  2. Step 2: Convert to fraction form
    9,063.76/12,508 = 5,289.52/x
  3. Step 3: Cross multiply
    9,063.76x = 12,508 × 5,289.52
  4. Step 4: Simplify right side
    9,063.76x = 66,161,316.16
  5. Step 5: Solve for x
    x = 66,161,316.16/9,063.76
  6. Step 6: Final answer
    x = 7,299.54

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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.