Home / 11,747.01-16,211.81-6,643.60

Finding the Fourth Proportional to 11,747.01, 16,211.81 and 6,643.60

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Solution

The fourth proportional to 11,747.01, 16,211.81 and 6,643.60 is: 9,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.01 : 16,211.81 = 6,643.60 : x
  2. Step 2: Convert to fraction form
    11,747.01/16,211.81 = 6,643.60/x
  3. Step 3: Cross multiply
    11,747.01x = 16,211.81 × 6,643.60
  4. Step 4: Simplify right side
    11,747.01x = 107,704,750.02
  5. Step 5: Solve for x
    x = 107,704,750.02/11,747.01
  6. Step 6: Final answer
    x = 9,168.70

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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.