Home / 9,966.28-13,749.32-6,188.18

Finding the Fourth Proportional to 9,966.28, 13,749.32 and 6,188.18

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Solution

The fourth proportional to 9,966.28, 13,749.32 and 6,188.18 is: 8,537.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.28 : 13,749.32 = 6,188.18 : x
  2. Step 2: Convert to fraction form
    9,966.28/13,749.32 = 6,188.18/x
  3. Step 3: Cross multiply
    9,966.28x = 13,749.32 × 6,188.18
  4. Step 4: Simplify right side
    9,966.28x = 85,083,267.04
  5. Step 5: Solve for x
    x = 85,083,267.04/9,966.28
  6. Step 6: Final answer
    x = 8,537.11

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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.