Home / 10,931.32-16,372.26-8,962.96

Finding the Fourth Proportional to 10,931.32, 16,372.26 and 8,962.96

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Solution

The fourth proportional to 10,931.32, 16,372.26 and 8,962.96 is: 13,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.32 : 16,372.26 = 8,962.96 : x
  2. Step 2: Convert to fraction form
    10,931.32/16,372.26 = 8,962.96/x
  3. Step 3: Cross multiply
    10,931.32x = 16,372.26 × 8,962.96
  4. Step 4: Simplify right side
    10,931.32x = 146,743,911.49
  5. Step 5: Solve for x
    x = 146,743,911.49/10,931.32
  6. Step 6: Final answer
    x = 13,424.17

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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.