Home / 10,209.40-15,314.67-3,635.58

Finding the Fourth Proportional to 10,209.40, 15,314.67 and 3,635.58

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Solution

The fourth proportional to 10,209.40, 15,314.67 and 3,635.58 is: 5,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.40 : 15,314.67 = 3,635.58 : x
  2. Step 2: Convert to fraction form
    10,209.40/15,314.67 = 3,635.58/x
  3. Step 3: Cross multiply
    10,209.40x = 15,314.67 × 3,635.58
  4. Step 4: Simplify right side
    10,209.40x = 55,677,741.70
  5. Step 5: Solve for x
    x = 55,677,741.70/10,209.40
  6. Step 6: Final answer
    x = 5,453.58

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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.