Home / 18,697.18-28,037.56-7,002.20

Finding the Fourth Proportional to 18,697.18, 28,037.56 and 7,002.20

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Solution

The fourth proportional to 18,697.18, 28,037.56 and 7,002.20 is: 10,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.18 : 28,037.56 = 7,002.20 : x
  2. Step 2: Convert to fraction form
    18,697.18/28,037.56 = 7,002.20/x
  3. Step 3: Cross multiply
    18,697.18x = 28,037.56 × 7,002.20
  4. Step 4: Simplify right side
    18,697.18x = 196,324,602.63
  5. Step 5: Solve for x
    x = 196,324,602.63/18,697.18
  6. Step 6: Final answer
    x = 10,500.23

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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.