Home / 13,113.20-19,677-6,187.52

Finding the Fourth Proportional to 13,113.20, 19,677 and 6,187.52

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Solution

The fourth proportional to 13,113.20, 19,677 and 6,187.52 is: 9,284.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.20 : 19,677 = 6,187.52 : x
  2. Step 2: Convert to fraction form
    13,113.20/19,677 = 6,187.52/x
  3. Step 3: Cross multiply
    13,113.20x = 19,677 × 6,187.52
  4. Step 4: Simplify right side
    13,113.20x = 121,751,831.04
  5. Step 5: Solve for x
    x = 121,751,831.04/13,113.20
  6. Step 6: Final answer
    x = 9,284.68

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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.