Home / 7,587.52-11,381.97-3,430.86

Finding the Fourth Proportional to 7,587.52, 11,381.97 and 3,430.86

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Solution

The fourth proportional to 7,587.52, 11,381.97 and 3,430.86 is: 5,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,587.52 : 11,381.97 = 3,430.86 : x
  2. Step 2: Convert to fraction form
    7,587.52/11,381.97 = 3,430.86/x
  3. Step 3: Cross multiply
    7,587.52x = 11,381.97 × 3,430.86
  4. Step 4: Simplify right side
    7,587.52x = 39,049,896.48
  5. Step 5: Solve for x
    x = 39,049,896.48/7,587.52
  6. Step 6: Final answer
    x = 5,146.59

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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.