Home / 9,931.55-13,705.09-5,954.85

Finding the Fourth Proportional to 9,931.55, 13,705.09 and 5,954.85

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Solution

The fourth proportional to 9,931.55, 13,705.09 and 5,954.85 is: 8,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.55 : 13,705.09 = 5,954.85 : x
  2. Step 2: Convert to fraction form
    9,931.55/13,705.09 = 5,954.85/x
  3. Step 3: Cross multiply
    9,931.55x = 13,705.09 × 5,954.85
  4. Step 4: Simplify right side
    9,931.55x = 81,611,740.30
  5. Step 5: Solve for x
    x = 81,611,740.30/9,931.55
  6. Step 6: Final answer
    x = 8,217.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.