Home / 13,722.51-20,575.98-4,360.71

Finding the Fourth Proportional to 13,722.51, 20,575.98 and 4,360.71

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Solution

The fourth proportional to 13,722.51, 20,575.98 and 4,360.71 is: 6,538.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.51 : 20,575.98 = 4,360.71 : x
  2. Step 2: Convert to fraction form
    13,722.51/20,575.98 = 4,360.71/x
  3. Step 3: Cross multiply
    13,722.51x = 20,575.98 × 4,360.71
  4. Step 4: Simplify right side
    13,722.51x = 89,725,881.75
  5. Step 5: Solve for x
    x = 89,725,881.75/13,722.51
  6. Step 6: Final answer
    x = 6,538.59

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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.