Home / 9,665.60-13,337.70-5,631.80

Finding the Fourth Proportional to 9,665.60, 13,337.70 and 5,631.80

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Solution

The fourth proportional to 9,665.60, 13,337.70 and 5,631.80 is: 7,771.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,665.60 : 13,337.70 = 5,631.80 : x
  2. Step 2: Convert to fraction form
    9,665.60/13,337.70 = 5,631.80/x
  3. Step 3: Cross multiply
    9,665.60x = 13,337.70 × 5,631.80
  4. Step 4: Simplify right side
    9,665.60x = 75,115,258.86
  5. Step 5: Solve for x
    x = 75,115,258.86/9,665.60
  6. Step 6: Final answer
    x = 7,771.40

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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.