Home / 13,309.86-19,964.98-6,382.74

Finding the Fourth Proportional to 13,309.86, 19,964.98 and 6,382.74

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Solution

The fourth proportional to 13,309.86, 19,964.98 and 6,382.74 is: 9,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.86 : 19,964.98 = 6,382.74 : x
  2. Step 2: Convert to fraction form
    13,309.86/19,964.98 = 6,382.74/x
  3. Step 3: Cross multiply
    13,309.86x = 19,964.98 × 6,382.74
  4. Step 4: Simplify right side
    13,309.86x = 127,431,276.45
  5. Step 5: Solve for x
    x = 127,431,276.45/13,309.86
  6. Step 6: Final answer
    x = 9,574.20

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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.