Home / 15,198.89-20,988.96-14,370.58

Finding the Fourth Proportional to 15,198.89, 20,988.96 and 14,370.58

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Solution

The fourth proportional to 15,198.89, 20,988.96 and 14,370.58 is: 19,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198.89 : 20,988.96 = 14,370.58 : x
  2. Step 2: Convert to fraction form
    15,198.89/20,988.96 = 14,370.58/x
  3. Step 3: Cross multiply
    15,198.89x = 20,988.96 × 14,370.58
  4. Step 4: Simplify right side
    15,198.89x = 301,623,423.85
  5. Step 5: Solve for x
    x = 301,623,423.85/15,198.89
  6. Step 6: Final answer
    x = 19,845.10

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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.