Home / 13,259.50-19,889.15-3,398.76

Finding the Fourth Proportional to 13,259.50, 19,889.15 and 3,398.76

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Solution

The fourth proportional to 13,259.50, 19,889.15 and 3,398.76 is: 5,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.50 : 19,889.15 = 3,398.76 : x
  2. Step 2: Convert to fraction form
    13,259.50/19,889.15 = 3,398.76/x
  3. Step 3: Cross multiply
    13,259.50x = 19,889.15 × 3,398.76
  4. Step 4: Simplify right side
    13,259.50x = 67,598,430.46
  5. Step 5: Solve for x
    x = 67,598,430.46/13,259.50
  6. Step 6: Final answer
    x = 5,098.11

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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.