Home / 18,113.40-27,175.23-6,427.80

Finding the Fourth Proportional to 18,113.40, 27,175.23 and 6,427.80

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Solution

The fourth proportional to 18,113.40, 27,175.23 and 6,427.80 is: 9,643.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.40 : 27,175.23 = 6,427.80 : x
  2. Step 2: Convert to fraction form
    18,113.40/27,175.23 = 6,427.80/x
  3. Step 3: Cross multiply
    18,113.40x = 27,175.23 × 6,427.80
  4. Step 4: Simplify right side
    18,113.40x = 174,676,943.39
  5. Step 5: Solve for x
    x = 174,676,943.39/18,113.40
  6. Step 6: Final answer
    x = 9,643.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.