Home / 13,240.12-19,862.63-4,355.95

Finding the Fourth Proportional to 13,240.12, 19,862.63 and 4,355.95

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Solution

The fourth proportional to 13,240.12, 19,862.63 and 4,355.95 is: 6,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.12 : 19,862.63 = 4,355.95 : x
  2. Step 2: Convert to fraction form
    13,240.12/19,862.63 = 4,355.95/x
  3. Step 3: Cross multiply
    13,240.12x = 19,862.63 × 4,355.95
  4. Step 4: Simplify right side
    13,240.12x = 86,520,623.15
  5. Step 5: Solve for x
    x = 86,520,623.15/13,240.12
  6. Step 6: Final answer
    x = 6,534.73

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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.