Home / 9,390.28-12,957.50-5,198.28

Finding the Fourth Proportional to 9,390.28, 12,957.50 and 5,198.28

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Solution

The fourth proportional to 9,390.28, 12,957.50 and 5,198.28 is: 7,173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.28 : 12,957.50 = 5,198.28 : x
  2. Step 2: Convert to fraction form
    9,390.28/12,957.50 = 5,198.28/x
  3. Step 3: Cross multiply
    9,390.28x = 12,957.50 × 5,198.28
  4. Step 4: Simplify right side
    9,390.28x = 67,356,713.10
  5. Step 5: Solve for x
    x = 67,356,713.10/9,390.28
  6. Step 6: Final answer
    x = 7,173.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.