Home / 10,931.36-16,383.30-4,684

Finding the Fourth Proportional to 10,931.36, 16,383.30 and 4,684

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Solution

The fourth proportional to 10,931.36, 16,383.30 and 4,684 is: 7,020.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.36 : 16,383.30 = 4,684 : x
  2. Step 2: Convert to fraction form
    10,931.36/16,383.30 = 4,684/x
  3. Step 3: Cross multiply
    10,931.36x = 16,383.30 × 4,684
  4. Step 4: Simplify right side
    10,931.36x = 76,739,377.20
  5. Step 5: Solve for x
    x = 76,739,377.20/10,931.36
  6. Step 6: Final answer
    x = 7,020.11

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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.