Home / 9,761.43-13,470.68-5,285.07

Finding the Fourth Proportional to 9,761.43, 13,470.68 and 5,285.07

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Solution

The fourth proportional to 9,761.43, 13,470.68 and 5,285.07 is: 7,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761.43 : 13,470.68 = 5,285.07 : x
  2. Step 2: Convert to fraction form
    9,761.43/13,470.68 = 5,285.07/x
  3. Step 3: Cross multiply
    9,761.43x = 13,470.68 × 5,285.07
  4. Step 4: Simplify right side
    9,761.43x = 71,193,486.75
  5. Step 5: Solve for x
    x = 71,193,486.75/9,761.43
  6. Step 6: Final answer
    x = 7,293.35

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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.