Home / 13,619.81-20,424.44-5,298.71

Finding the Fourth Proportional to 13,619.81, 20,424.44 and 5,298.71

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Solution

The fourth proportional to 13,619.81, 20,424.44 and 5,298.71 is: 7,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.81 : 20,424.44 = 5,298.71 : x
  2. Step 2: Convert to fraction form
    13,619.81/20,424.44 = 5,298.71/x
  3. Step 3: Cross multiply
    13,619.81x = 20,424.44 × 5,298.71
  4. Step 4: Simplify right side
    13,619.81x = 108,223,055.86
  5. Step 5: Solve for x
    x = 108,223,055.86/13,619.81
  6. Step 6: Final answer
    x = 7,946.01

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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.