Home / 14,639.91-20,201.79-8,670.62

Finding the Fourth Proportional to 14,639.91, 20,201.79 and 8,670.62

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Solution

The fourth proportional to 14,639.91, 20,201.79 and 8,670.62 is: 11,964.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.91 : 20,201.79 = 8,670.62 : x
  2. Step 2: Convert to fraction form
    14,639.91/20,201.79 = 8,670.62/x
  3. Step 3: Cross multiply
    14,639.91x = 20,201.79 × 8,670.62
  4. Step 4: Simplify right side
    14,639.91x = 175,161,943.40
  5. Step 5: Solve for x
    x = 175,161,943.40/14,639.91
  6. Step 6: Final answer
    x = 11,964.69

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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.