Home / 18,487.32-27,730.58-7,964.34

Finding the Fourth Proportional to 18,487.32, 27,730.58 and 7,964.34

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Solution

The fourth proportional to 18,487.32, 27,730.58 and 7,964.34 is: 11,946.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.32 : 27,730.58 = 7,964.34 : x
  2. Step 2: Convert to fraction form
    18,487.32/27,730.58 = 7,964.34/x
  3. Step 3: Cross multiply
    18,487.32x = 27,730.58 × 7,964.34
  4. Step 4: Simplify right side
    18,487.32x = 220,855,727.70
  5. Step 5: Solve for x
    x = 220,855,727.70/18,487.32
  6. Step 6: Final answer
    x = 11,946.34

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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.