Home / 8,752.12-12,076.50-5,215.48

Finding the Fourth Proportional to 8,752.12, 12,076.50 and 5,215.48

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Solution

The fourth proportional to 8,752.12, 12,076.50 and 5,215.48 is: 7,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.12 : 12,076.50 = 5,215.48 : x
  2. Step 2: Convert to fraction form
    8,752.12/12,076.50 = 5,215.48/x
  3. Step 3: Cross multiply
    8,752.12x = 12,076.50 × 5,215.48
  4. Step 4: Simplify right side
    8,752.12x = 62,984,744.22
  5. Step 5: Solve for x
    x = 62,984,744.22/8,752.12
  6. Step 6: Final answer
    x = 7,196.51

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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.