Home / 9,146.47-13,718.30-2,905.68

Finding the Fourth Proportional to 9,146.47, 13,718.30 and 2,905.68

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Solution

The fourth proportional to 9,146.47, 13,718.30 and 2,905.68 is: 4,358.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,146.47 : 13,718.30 = 2,905.68 : x
  2. Step 2: Convert to fraction form
    9,146.47/13,718.30 = 2,905.68/x
  3. Step 3: Cross multiply
    9,146.47x = 13,718.30 × 2,905.68
  4. Step 4: Simplify right side
    9,146.47x = 39,860,921.35
  5. Step 5: Solve for x
    x = 39,860,921.35/9,146.47
  6. Step 6: Final answer
    x = 4,358.07

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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.