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Finding the Fourth Proportional to 9,061.63, 12,505.07 and 5,287.39

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Solution

The fourth proportional to 9,061.63, 12,505.07 and 5,287.39 is: 7,296.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,061.63 : 12,505.07 = 5,287.39 : x
  2. Step 2: Convert to fraction form
    9,061.63/12,505.07 = 5,287.39/x
  3. Step 3: Cross multiply
    9,061.63x = 12,505.07 × 5,287.39
  4. Step 4: Simplify right side
    9,061.63x = 66,119,182.07
  5. Step 5: Solve for x
    x = 66,119,182.07/9,061.63
  6. Step 6: Final answer
    x = 7,296.61

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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.