Home / 13,900.77-19,170.72-10,132.74

Finding the Fourth Proportional to 13,900.77, 19,170.72 and 10,132.74

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Solution

The fourth proportional to 13,900.77, 19,170.72 and 10,132.74 is: 13,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.77 : 19,170.72 = 10,132.74 : x
  2. Step 2: Convert to fraction form
    13,900.77/19,170.72 = 10,132.74/x
  3. Step 3: Cross multiply
    13,900.77x = 19,170.72 × 10,132.74
  4. Step 4: Simplify right side
    13,900.77x = 194,251,921.37
  5. Step 5: Solve for x
    x = 194,251,921.37/13,900.77
  6. Step 6: Final answer
    x = 13,974.18

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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.