Home / 10,881.76-16,325.45-4,638.64

Finding the Fourth Proportional to 10,881.76, 16,325.45 and 4,638.64

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Solution

The fourth proportional to 10,881.76, 16,325.45 and 4,638.64 is: 6,959.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.76 : 16,325.45 = 4,638.64 : x
  2. Step 2: Convert to fraction form
    10,881.76/16,325.45 = 4,638.64/x
  3. Step 3: Cross multiply
    10,881.76x = 16,325.45 × 4,638.64
  4. Step 4: Simplify right side
    10,881.76x = 75,727,885.39
  5. Step 5: Solve for x
    x = 75,727,885.39/10,881.76
  6. Step 6: Final answer
    x = 6,959.16

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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.