Home / 9,255.48-12,778.44-5,720.72

Finding the Fourth Proportional to 9,255.48, 12,778.44 and 5,720.72

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Solution

The fourth proportional to 9,255.48, 12,778.44 and 5,720.72 is: 7,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.48 : 12,778.44 = 5,720.72 : x
  2. Step 2: Convert to fraction form
    9,255.48/12,778.44 = 5,720.72/x
  3. Step 3: Cross multiply
    9,255.48x = 12,778.44 × 5,720.72
  4. Step 4: Simplify right side
    9,255.48x = 73,101,877.28
  5. Step 5: Solve for x
    x = 73,101,877.28/9,255.48
  6. Step 6: Final answer
    x = 7,898.23

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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.