Home / 18,347.40-27,521.10-5,199.60

Finding the Fourth Proportional to 18,347.40, 27,521.10 and 5,199.60

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Solution

The fourth proportional to 18,347.40, 27,521.10 and 5,199.60 is: 7,799.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.40 : 27,521.10 = 5,199.60 : x
  2. Step 2: Convert to fraction form
    18,347.40/27,521.10 = 5,199.60/x
  3. Step 3: Cross multiply
    18,347.40x = 27,521.10 × 5,199.60
  4. Step 4: Simplify right side
    18,347.40x = 143,098,711.56
  5. Step 5: Solve for x
    x = 143,098,711.56/18,347.40
  6. Step 6: Final answer
    x = 7,799.40

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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.