Home / 9,869.40-13,618.26-5,890.68

Finding the Fourth Proportional to 9,869.40, 13,618.26 and 5,890.68

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Solution

The fourth proportional to 9,869.40, 13,618.26 and 5,890.68 is: 8,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.40 : 13,618.26 = 5,890.68 : x
  2. Step 2: Convert to fraction form
    9,869.40/13,618.26 = 5,890.68/x
  3. Step 3: Cross multiply
    9,869.40x = 13,618.26 × 5,890.68
  4. Step 4: Simplify right side
    9,869.40x = 80,220,811.82
  5. Step 5: Solve for x
    x = 80,220,811.82/9,869.40
  6. Step 6: Final answer
    x = 8,128.24

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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.