Home / 10,931.22-16,381.10-4,689.56

Finding the Fourth Proportional to 10,931.22, 16,381.10 and 4,689.56

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Solution

The fourth proportional to 10,931.22, 16,381.10 and 4,689.56 is: 7,027.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.22 : 16,381.10 = 4,689.56 : x
  2. Step 2: Convert to fraction form
    10,931.22/16,381.10 = 4,689.56/x
  3. Step 3: Cross multiply
    10,931.22x = 16,381.10 × 4,689.56
  4. Step 4: Simplify right side
    10,931.22x = 76,820,203.99
  5. Step 5: Solve for x
    x = 76,820,203.99/10,931.22
  6. Step 6: Final answer
    x = 7,027.60

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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.