Home / 8,156.07-11,255.48-4,619.20

Finding the Fourth Proportional to 8,156.07, 11,255.48 and 4,619.20

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Solution

The fourth proportional to 8,156.07, 11,255.48 and 4,619.20 is: 6,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.07 : 11,255.48 = 4,619.20 : x
  2. Step 2: Convert to fraction form
    8,156.07/11,255.48 = 4,619.20/x
  3. Step 3: Cross multiply
    8,156.07x = 11,255.48 × 4,619.20
  4. Step 4: Simplify right side
    8,156.07x = 51,991,313.22
  5. Step 5: Solve for x
    x = 51,991,313.22/8,156.07
  6. Step 6: Final answer
    x = 6,374.55

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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.