Home / 14,186.53-21,279.80-6,397.57

Finding the Fourth Proportional to 14,186.53, 21,279.80 and 6,397.57

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Solution

The fourth proportional to 14,186.53, 21,279.80 and 6,397.57 is: 9,596.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.53 : 21,279.80 = 6,397.57 : x
  2. Step 2: Convert to fraction form
    14,186.53/21,279.80 = 6,397.57/x
  3. Step 3: Cross multiply
    14,186.53x = 21,279.80 × 6,397.57
  4. Step 4: Simplify right side
    14,186.53x = 136,139,010.09
  5. Step 5: Solve for x
    x = 136,139,010.09/14,186.53
  6. Step 6: Final answer
    x = 9,596.36

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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.