Home / 10,961.40-16,436.03-4,720.35

Finding the Fourth Proportional to 10,961.40, 16,436.03 and 4,720.35

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Solution

The fourth proportional to 10,961.40, 16,436.03 and 4,720.35 is: 7,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.40 : 16,436.03 = 4,720.35 : x
  2. Step 2: Convert to fraction form
    10,961.40/16,436.03 = 4,720.35/x
  3. Step 3: Cross multiply
    10,961.40x = 16,436.03 × 4,720.35
  4. Step 4: Simplify right side
    10,961.40x = 77,583,790.61
  5. Step 5: Solve for x
    x = 77,583,790.61/10,961.40
  6. Step 6: Final answer
    x = 7,077.91

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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.