Home / 9,890.60-13,648.89-5,414.24

Finding the Fourth Proportional to 9,890.60, 13,648.89 and 5,414.24

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Solution

The fourth proportional to 9,890.60, 13,648.89 and 5,414.24 is: 7,471.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.60 : 13,648.89 = 5,414.24 : x
  2. Step 2: Convert to fraction form
    9,890.60/13,648.89 = 5,414.24/x
  3. Step 3: Cross multiply
    9,890.60x = 13,648.89 × 5,414.24
  4. Step 4: Simplify right side
    9,890.60x = 73,898,366.19
  5. Step 5: Solve for x
    x = 73,898,366.19/9,890.60
  6. Step 6: Final answer
    x = 7,471.58

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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.