Home / 19,555.85-29,335.14-7,869.12

Finding the Fourth Proportional to 19,555.85, 29,335.14 and 7,869.12

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Solution

The fourth proportional to 19,555.85, 29,335.14 and 7,869.12 is: 11,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.85 : 29,335.14 = 7,869.12 : x
  2. Step 2: Convert to fraction form
    19,555.85/29,335.14 = 7,869.12/x
  3. Step 3: Cross multiply
    19,555.85x = 29,335.14 × 7,869.12
  4. Step 4: Simplify right side
    19,555.85x = 230,841,736.88
  5. Step 5: Solve for x
    x = 230,841,736.88/19,555.85
  6. Step 6: Final answer
    x = 11,804.23

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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.