Home / 14,867.81-20,516.09-8,582.21

Finding the Fourth Proportional to 14,867.81, 20,516.09 and 8,582.21

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Solution

The fourth proportional to 14,867.81, 20,516.09 and 8,582.21 is: 11,842.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.81 : 20,516.09 = 8,582.21 : x
  2. Step 2: Convert to fraction form
    14,867.81/20,516.09 = 8,582.21/x
  3. Step 3: Cross multiply
    14,867.81x = 20,516.09 × 8,582.21
  4. Step 4: Simplify right side
    14,867.81x = 176,073,311.63
  5. Step 5: Solve for x
    x = 176,073,311.63/14,867.81
  6. Step 6: Final answer
    x = 11,842.59

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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.