Home / 13,259.51-19,889.27-3,398.88

Finding the Fourth Proportional to 13,259.51, 19,889.27 and 3,398.88

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Solution

The fourth proportional to 13,259.51, 19,889.27 and 3,398.88 is: 5,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.51 : 19,889.27 = 3,398.88 : x
  2. Step 2: Convert to fraction form
    13,259.51/19,889.27 = 3,398.88/x
  3. Step 3: Cross multiply
    13,259.51x = 19,889.27 × 3,398.88
  4. Step 4: Simplify right side
    13,259.51x = 67,601,242.02
  5. Step 5: Solve for x
    x = 67,601,242.02/13,259.51
  6. Step 6: Final answer
    x = 5,098.32

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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.