Home / 8,964.66-12,358.40-5,979.40

Finding the Fourth Proportional to 8,964.66, 12,358.40 and 5,979.40

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Solution

The fourth proportional to 8,964.66, 12,358.40 and 5,979.40 is: 8,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.66 : 12,358.40 = 5,979.40 : x
  2. Step 2: Convert to fraction form
    8,964.66/12,358.40 = 5,979.40/x
  3. Step 3: Cross multiply
    8,964.66x = 12,358.40 × 5,979.40
  4. Step 4: Simplify right side
    8,964.66x = 73,895,816.96
  5. Step 5: Solve for x
    x = 73,895,816.96/8,964.66
  6. Step 6: Final answer
    x = 8,243.01

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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.