Home / 10,722.64-16,083.96-2,931.66

Finding the Fourth Proportional to 10,722.64, 16,083.96 and 2,931.66

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Solution

The fourth proportional to 10,722.64, 16,083.96 and 2,931.66 is: 4,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.64 : 16,083.96 = 2,931.66 : x
  2. Step 2: Convert to fraction form
    10,722.64/16,083.96 = 2,931.66/x
  3. Step 3: Cross multiply
    10,722.64x = 16,083.96 × 2,931.66
  4. Step 4: Simplify right side
    10,722.64x = 47,152,702.17
  5. Step 5: Solve for x
    x = 47,152,702.17/10,722.64
  6. Step 6: Final answer
    x = 4,397.49

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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.