Home / 7,430.62-11,128.34-6,451.40

Finding the Fourth Proportional to 7,430.62, 11,128.34 and 6,451.40

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Solution

The fourth proportional to 7,430.62, 11,128.34 and 6,451.40 is: 9,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.62 : 11,128.34 = 6,451.40 : x
  2. Step 2: Convert to fraction form
    7,430.62/11,128.34 = 6,451.40/x
  3. Step 3: Cross multiply
    7,430.62x = 11,128.34 × 6,451.40
  4. Step 4: Simplify right side
    7,430.62x = 71,793,372.68
  5. Step 5: Solve for x
    x = 71,793,372.68/7,430.62
  6. Step 6: Final answer
    x = 9,661.83

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1.5x scale

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.