Home / 7,966.96-10,995.72-6,638.56

Finding the Fourth Proportional to 7,966.96, 10,995.72 and 6,638.56

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Solution

The fourth proportional to 7,966.96, 10,995.72 and 6,638.56 is: 9,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.96 : 10,995.72 = 6,638.56 : x
  2. Step 2: Convert to fraction form
    7,966.96/10,995.72 = 6,638.56/x
  3. Step 3: Cross multiply
    7,966.96x = 10,995.72 × 6,638.56
  4. Step 4: Simplify right side
    7,966.96x = 72,995,746.96
  5. Step 5: Solve for x
    x = 72,995,746.96/7,966.96
  6. Step 6: Final answer
    x = 9,162.31

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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.