Home / 12,320.71-18,483.97-4,000.09

Finding the Fourth Proportional to 12,320.71, 18,483.97 and 4,000.09

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Solution

The fourth proportional to 12,320.71, 18,483.97 and 4,000.09 is: 6,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.71 : 18,483.97 = 4,000.09 : x
  2. Step 2: Convert to fraction form
    12,320.71/18,483.97 = 4,000.09/x
  3. Step 3: Cross multiply
    12,320.71x = 18,483.97 × 4,000.09
  4. Step 4: Simplify right side
    12,320.71x = 73,937,451.14
  5. Step 5: Solve for x
    x = 73,937,451.14/12,320.71
  6. Step 6: Final answer
    x = 6,001.07

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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.