Home / 18,500.90-27,756.77-5,353.38

Finding the Fourth Proportional to 18,500.90, 27,756.77 and 5,353.38

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Solution

The fourth proportional to 18,500.90, 27,756.77 and 5,353.38 is: 8,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.90 : 27,756.77 = 5,353.38 : x
  2. Step 2: Convert to fraction form
    18,500.90/27,756.77 = 5,353.38/x
  3. Step 3: Cross multiply
    18,500.90x = 27,756.77 × 5,353.38
  4. Step 4: Simplify right side
    18,500.90x = 148,592,510.62
  5. Step 5: Solve for x
    x = 148,592,510.62/18,500.90
  6. Step 6: Final answer
    x = 8,031.64

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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.