Home / 14,419.16-19,897.67-8,131.13

Finding the Fourth Proportional to 14,419.16, 19,897.67 and 8,131.13

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Solution

The fourth proportional to 14,419.16, 19,897.67 and 8,131.13 is: 11,220.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.16 : 19,897.67 = 8,131.13 : x
  2. Step 2: Convert to fraction form
    14,419.16/19,897.67 = 8,131.13/x
  3. Step 3: Cross multiply
    14,419.16x = 19,897.67 × 8,131.13
  4. Step 4: Simplify right side
    14,419.16x = 161,790,462.31
  5. Step 5: Solve for x
    x = 161,790,462.31/14,419.16
  6. Step 6: Final answer
    x = 11,220.52

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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.