Home / 10,193.57-15,291.88-3,619.21

Finding the Fourth Proportional to 10,193.57, 15,291.88 and 3,619.21

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Solution

The fourth proportional to 10,193.57, 15,291.88 and 3,619.21 is: 5,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,193.57 : 15,291.88 = 3,619.21 : x
  2. Step 2: Convert to fraction form
    10,193.57/15,291.88 = 3,619.21/x
  3. Step 3: Cross multiply
    10,193.57x = 15,291.88 × 3,619.21
  4. Step 4: Simplify right side
    10,193.57x = 55,344,430.46
  5. Step 5: Solve for x
    x = 55,344,430.46/10,193.57
  6. Step 6: Final answer
    x = 5,429.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.