Home / 9,903.52-13,662.68-6,120.12

Finding the Fourth Proportional to 9,903.52, 13,662.68 and 6,120.12

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Solution

The fourth proportional to 9,903.52, 13,662.68 and 6,120.12 is: 8,443.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.52 : 13,662.68 = 6,120.12 : x
  2. Step 2: Convert to fraction form
    9,903.52/13,662.68 = 6,120.12/x
  3. Step 3: Cross multiply
    9,903.52x = 13,662.68 × 6,120.12
  4. Step 4: Simplify right side
    9,903.52x = 83,617,204.12
  5. Step 5: Solve for x
    x = 83,617,204.12/9,903.52
  6. Step 6: Final answer
    x = 8,443.18

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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.