Home / 13,259.08-19,888.50-3,398.21

Finding the Fourth Proportional to 13,259.08, 19,888.50 and 3,398.21

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Solution

The fourth proportional to 13,259.08, 19,888.50 and 3,398.21 is: 5,097.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.08 : 19,888.50 = 3,398.21 : x
  2. Step 2: Convert to fraction form
    13,259.08/19,888.50 = 3,398.21/x
  3. Step 3: Cross multiply
    13,259.08x = 19,888.50 × 3,398.21
  4. Step 4: Simplify right side
    13,259.08x = 67,585,299.59
  5. Step 5: Solve for x
    x = 67,585,299.59/13,259.08
  6. Step 6: Final answer
    x = 5,097.28

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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.