Home / 12,510.21-17,261.39-7,974.62

Finding the Fourth Proportional to 12,510.21, 17,261.39 and 7,974.62

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Solution

The fourth proportional to 12,510.21, 17,261.39 and 7,974.62 is: 11,003.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.21 : 17,261.39 = 7,974.62 : x
  2. Step 2: Convert to fraction form
    12,510.21/17,261.39 = 7,974.62/x
  3. Step 3: Cross multiply
    12,510.21x = 17,261.39 × 7,974.62
  4. Step 4: Simplify right side
    12,510.21x = 137,652,899.74
  5. Step 5: Solve for x
    x = 137,652,899.74/12,510.21
  6. Step 6: Final answer
    x = 11,003.24

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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.