Home / 13,133.98-19,695.12-4,811.80

Finding the Fourth Proportional to 13,133.98, 19,695.12 and 4,811.80

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Solution

The fourth proportional to 13,133.98, 19,695.12 and 4,811.80 is: 7,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.98 : 19,695.12 = 4,811.80 : x
  2. Step 2: Convert to fraction form
    13,133.98/19,695.12 = 4,811.80/x
  3. Step 3: Cross multiply
    13,133.98x = 19,695.12 × 4,811.80
  4. Step 4: Simplify right side
    13,133.98x = 94,768,978.42
  5. Step 5: Solve for x
    x = 94,768,978.42/13,133.98
  6. Step 6: Final answer
    x = 7,215.56

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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.