Home / 8,746.34-13,119.47-2,172.53

Finding the Fourth Proportional to 8,746.34, 13,119.47 and 2,172.53

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Solution

The fourth proportional to 8,746.34, 13,119.47 and 2,172.53 is: 3,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,746.34 : 13,119.47 = 2,172.53 : x
  2. Step 2: Convert to fraction form
    8,746.34/13,119.47 = 2,172.53/x
  3. Step 3: Cross multiply
    8,746.34x = 13,119.47 × 2,172.53
  4. Step 4: Simplify right side
    8,746.34x = 28,502,365.70
  5. Step 5: Solve for x
    x = 28,502,365.70/8,746.34
  6. Step 6: Final answer
    x = 3,258.78

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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.