Home / 14,981.06-20,674.80-8,609.69

Finding the Fourth Proportional to 14,981.06, 20,674.80 and 8,609.69

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Solution

The fourth proportional to 14,981.06, 20,674.80 and 8,609.69 is: 11,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.06 : 20,674.80 = 8,609.69 : x
  2. Step 2: Convert to fraction form
    14,981.06/20,674.80 = 8,609.69/x
  3. Step 3: Cross multiply
    14,981.06x = 20,674.80 × 8,609.69
  4. Step 4: Simplify right side
    14,981.06x = 178,003,618.81
  5. Step 5: Solve for x
    x = 178,003,618.81/14,981.06
  6. Step 6: Final answer
    x = 11,881.91

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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.