Home / 13,239.12-19,841.40-5,453.76

Finding the Fourth Proportional to 13,239.12, 19,841.40 and 5,453.76

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Solution

The fourth proportional to 13,239.12, 19,841.40 and 5,453.76 is: 8,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.12 : 19,841.40 = 5,453.76 : x
  2. Step 2: Convert to fraction form
    13,239.12/19,841.40 = 5,453.76/x
  3. Step 3: Cross multiply
    13,239.12x = 19,841.40 × 5,453.76
  4. Step 4: Simplify right side
    13,239.12x = 108,210,233.66
  5. Step 5: Solve for x
    x = 108,210,233.66/13,239.12
  6. Step 6: Final answer
    x = 8,173.52

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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.