Home / 13,259.90-19,892.18-4,372.79

Finding the Fourth Proportional to 13,259.90, 19,892.18 and 4,372.79

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Solution

The fourth proportional to 13,259.90, 19,892.18 and 4,372.79 is: 6,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.90 : 19,892.18 = 4,372.79 : x
  2. Step 2: Convert to fraction form
    13,259.90/19,892.18 = 4,372.79/x
  3. Step 3: Cross multiply
    13,259.90x = 19,892.18 × 4,372.79
  4. Step 4: Simplify right side
    13,259.90x = 86,984,237.25
  5. Step 5: Solve for x
    x = 86,984,237.25/13,259.90
  6. Step 6: Final answer
    x = 6,559.95

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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.