Home / 14,009.33-21,020.67-8,742.91

Finding the Fourth Proportional to 14,009.33, 21,020.67 and 8,742.91

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Solution

The fourth proportional to 14,009.33, 21,020.67 and 8,742.91 is: 13,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.33 : 21,020.67 = 8,742.91 : x
  2. Step 2: Convert to fraction form
    14,009.33/21,020.67 = 8,742.91/x
  3. Step 3: Cross multiply
    14,009.33x = 21,020.67 × 8,742.91
  4. Step 4: Simplify right side
    14,009.33x = 183,781,825.95
  5. Step 5: Solve for x
    x = 183,781,825.95/14,009.33
  6. Step 6: Final answer
    x = 13,118.53

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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.