Home / 8,788.19-12,128.40-5,010.17

Finding the Fourth Proportional to 8,788.19, 12,128.40 and 5,010.17

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Solution

The fourth proportional to 8,788.19, 12,128.40 and 5,010.17 is: 6,914.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.19 : 12,128.40 = 5,010.17 : x
  2. Step 2: Convert to fraction form
    8,788.19/12,128.40 = 5,010.17/x
  3. Step 3: Cross multiply
    8,788.19x = 12,128.40 × 5,010.17
  4. Step 4: Simplify right side
    8,788.19x = 60,765,285.19
  5. Step 5: Solve for x
    x = 60,765,285.19/8,788.19
  6. Step 6: Final answer
    x = 6,914.43

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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.