Home / 8,635.24-12,964.70-4,478.12

Finding the Fourth Proportional to 8,635.24, 12,964.70 and 4,478.12

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Solution

The fourth proportional to 8,635.24, 12,964.70 and 4,478.12 is: 6,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.24 : 12,964.70 = 4,478.12 : x
  2. Step 2: Convert to fraction form
    8,635.24/12,964.70 = 4,478.12/x
  3. Step 3: Cross multiply
    8,635.24x = 12,964.70 × 4,478.12
  4. Step 4: Simplify right side
    8,635.24x = 58,057,482.36
  5. Step 5: Solve for x
    x = 58,057,482.36/8,635.24
  6. Step 6: Final answer
    x = 6,723.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.