Home / 8,495.28-11,721.48-4,957.20

Finding the Fourth Proportional to 8,495.28, 11,721.48 and 4,957.20

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Solution

The fourth proportional to 8,495.28, 11,721.48 and 4,957.20 is: 6,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.28 : 11,721.48 = 4,957.20 : x
  2. Step 2: Convert to fraction form
    8,495.28/11,721.48 = 4,957.20/x
  3. Step 3: Cross multiply
    8,495.28x = 11,721.48 × 4,957.20
  4. Step 4: Simplify right side
    8,495.28x = 58,105,720.66
  5. Step 5: Solve for x
    x = 58,105,720.66/8,495.28
  6. Step 6: Final answer
    x = 6,839.77

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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.