Home / 13,900.53-19,175.58-9,422.76

Finding the Fourth Proportional to 13,900.53, 19,175.58 and 9,422.76

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Solution

The fourth proportional to 13,900.53, 19,175.58 and 9,422.76 is: 12,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.53 : 19,175.58 = 9,422.76 : x
  2. Step 2: Convert to fraction form
    13,900.53/19,175.58 = 9,422.76/x
  3. Step 3: Cross multiply
    13,900.53x = 19,175.58 × 9,422.76
  4. Step 4: Simplify right side
    13,900.53x = 180,686,888.20
  5. Step 5: Solve for x
    x = 180,686,888.20/13,900.53
  6. Step 6: Final answer
    x = 12,998.56

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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.