Home / 18,381.36-27,560.18-7,858.24

Finding the Fourth Proportional to 18,381.36, 27,560.18 and 7,858.24

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Solution

The fourth proportional to 18,381.36, 27,560.18 and 7,858.24 is: 11,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.36 : 27,560.18 = 7,858.24 : x
  2. Step 2: Convert to fraction form
    18,381.36/27,560.18 = 7,858.24/x
  3. Step 3: Cross multiply
    18,381.36x = 27,560.18 × 7,858.24
  4. Step 4: Simplify right side
    18,381.36x = 216,574,508.88
  5. Step 5: Solve for x
    x = 216,574,508.88/18,381.36
  6. Step 6: Final answer
    x = 11,782.29

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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.