Home / 13,239.76-19,867.80-8,860.36

Finding the Fourth Proportional to 13,239.76, 19,867.80 and 8,860.36

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Solution

The fourth proportional to 13,239.76, 19,867.80 and 8,860.36 is: 13,296.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.76 : 19,867.80 = 8,860.36 : x
  2. Step 2: Convert to fraction form
    13,239.76/19,867.80 = 8,860.36/x
  3. Step 3: Cross multiply
    13,239.76x = 19,867.80 × 8,860.36
  4. Step 4: Simplify right side
    13,239.76x = 176,035,860.41
  5. Step 5: Solve for x
    x = 176,035,860.41/13,239.76
  6. Step 6: Final answer
    x = 13,296.00

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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.