Home / 13,259.15-19,888.27-3,398.53

Finding the Fourth Proportional to 13,259.15, 19,888.27 and 3,398.53

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Solution

The fourth proportional to 13,259.15, 19,888.27 and 3,398.53 is: 5,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.15 : 19,888.27 = 3,398.53 : x
  2. Step 2: Convert to fraction form
    13,259.15/19,888.27 = 3,398.53/x
  3. Step 3: Cross multiply
    13,259.15x = 19,888.27 × 3,398.53
  4. Step 4: Simplify right side
    13,259.15x = 67,590,882.24
  5. Step 5: Solve for x
    x = 67,590,882.24/13,259.15
  6. Step 6: Final answer
    x = 5,097.68

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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.