Home / 7,321.64-11,037.16-6,698.90

Finding the Fourth Proportional to 7,321.64, 11,037.16 and 6,698.90

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Solution

The fourth proportional to 7,321.64, 11,037.16 and 6,698.90 is: 10,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.64 : 11,037.16 = 6,698.90 : x
  2. Step 2: Convert to fraction form
    7,321.64/11,037.16 = 6,698.90/x
  3. Step 3: Cross multiply
    7,321.64x = 11,037.16 × 6,698.90
  4. Step 4: Simplify right side
    7,321.64x = 73,936,831.12
  5. Step 5: Solve for x
    x = 73,936,831.12/7,321.64
  6. Step 6: Final answer
    x = 10,098.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.