Home / 8,746.71-13,119.89-2,172.93

Finding the Fourth Proportional to 8,746.71, 13,119.89 and 2,172.93

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Solution

The fourth proportional to 8,746.71, 13,119.89 and 2,172.93 is: 3,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.71 : 13,119.89 = 2,172.93 : x
  2. Step 2: Convert to fraction form
    8,746.71/13,119.89 = 2,172.93/x
  3. Step 3: Cross multiply
    8,746.71x = 13,119.89 × 2,172.93
  4. Step 4: Simplify right side
    8,746.71x = 28,508,591.71
  5. Step 5: Solve for x
    x = 28,508,591.71/8,746.71
  6. Step 6: Final answer
    x = 3,259.35

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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.