Home / 12,087.48-18,085.83-7,159.44

Finding the Fourth Proportional to 12,087.48, 18,085.83 and 7,159.44

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Solution

The fourth proportional to 12,087.48, 18,085.83 and 7,159.44 is: 10,712.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.48 : 18,085.83 = 7,159.44 : x
  2. Step 2: Convert to fraction form
    12,087.48/18,085.83 = 7,159.44/x
  3. Step 3: Cross multiply
    12,087.48x = 18,085.83 × 7,159.44
  4. Step 4: Simplify right side
    12,087.48x = 129,484,414.74
  5. Step 5: Solve for x
    x = 129,484,414.74/12,087.48
  6. Step 6: Final answer
    x = 10,712.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.