Home / 9,890.45-13,648.96-5,414.11

Finding the Fourth Proportional to 9,890.45, 13,648.96 and 5,414.11

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Solution

The fourth proportional to 9,890.45, 13,648.96 and 5,414.11 is: 7,471.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.45 : 13,648.96 = 5,414.11 : x
  2. Step 2: Convert to fraction form
    9,890.45/13,648.96 = 5,414.11/x
  3. Step 3: Cross multiply
    9,890.45x = 13,648.96 × 5,414.11
  4. Step 4: Simplify right side
    9,890.45x = 73,896,875.51
  5. Step 5: Solve for x
    x = 73,896,875.51/9,890.45
  6. Step 6: Final answer
    x = 7,471.54

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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.