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Finding the Fourth Proportional to 7,187.91, 10,798.20 and 6,203.76

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Solution

The fourth proportional to 7,187.91, 10,798.20 and 6,203.76 is: 9,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.91 : 10,798.20 = 6,203.76 : x
  2. Step 2: Convert to fraction form
    7,187.91/10,798.20 = 6,203.76/x
  3. Step 3: Cross multiply
    7,187.91x = 10,798.20 × 6,203.76
  4. Step 4: Simplify right side
    7,187.91x = 66,989,441.23
  5. Step 5: Solve for x
    x = 66,989,441.23/7,187.91
  6. Step 6: Final answer
    x = 9,319.74

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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.