Home / 13,872.87-19,150.74-10,685.01

Finding the Fourth Proportional to 13,872.87, 19,150.74 and 10,685.01

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Solution

The fourth proportional to 13,872.87, 19,150.74 and 10,685.01 is: 14,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.87 : 19,150.74 = 10,685.01 : x
  2. Step 2: Convert to fraction form
    13,872.87/19,150.74 = 10,685.01/x
  3. Step 3: Cross multiply
    13,872.87x = 19,150.74 × 10,685.01
  4. Step 4: Simplify right side
    13,872.87x = 204,625,848.41
  5. Step 5: Solve for x
    x = 204,625,848.41/13,872.87
  6. Step 6: Final answer
    x = 14,750.07

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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.