Home / 11,843.90-16,344.50-7,127.18

Finding the Fourth Proportional to 11,843.90, 16,344.50 and 7,127.18

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Solution

The fourth proportional to 11,843.90, 16,344.50 and 7,127.18 is: 9,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,843.90 : 16,344.50 = 7,127.18 : x
  2. Step 2: Convert to fraction form
    11,843.90/16,344.50 = 7,127.18/x
  3. Step 3: Cross multiply
    11,843.90x = 16,344.50 × 7,127.18
  4. Step 4: Simplify right side
    11,843.90x = 116,490,193.51
  5. Step 5: Solve for x
    x = 116,490,193.51/11,843.90
  6. Step 6: Final answer
    x = 9,835.46

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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.