Home / 12,107.56-16,710.40-10,087.76

Finding the Fourth Proportional to 12,107.56, 16,710.40 and 10,087.76

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Solution

The fourth proportional to 12,107.56, 16,710.40 and 10,087.76 is: 13,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.56 : 16,710.40 = 10,087.76 : x
  2. Step 2: Convert to fraction form
    12,107.56/16,710.40 = 10,087.76/x
  3. Step 3: Cross multiply
    12,107.56x = 16,710.40 × 10,087.76
  4. Step 4: Simplify right side
    12,107.56x = 168,570,504.70
  5. Step 5: Solve for x
    x = 168,570,504.70/12,107.56
  6. Step 6: Final answer
    x = 13,922.75

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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.