Home / 9,198.16-12,688.08-6,677.32

Finding the Fourth Proportional to 9,198.16, 12,688.08 and 6,677.32

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Solution

The fourth proportional to 9,198.16, 12,688.08 and 6,677.32 is: 9,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.16 : 12,688.08 = 6,677.32 : x
  2. Step 2: Convert to fraction form
    9,198.16/12,688.08 = 6,677.32/x
  3. Step 3: Cross multiply
    9,198.16x = 12,688.08 × 6,677.32
  4. Step 4: Simplify right side
    9,198.16x = 84,722,370.35
  5. Step 5: Solve for x
    x = 84,722,370.35/9,198.16
  6. Step 6: Final answer
    x = 9,210.80

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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.