Home / 14,101.80-21,135.15-9,090.96

Finding the Fourth Proportional to 14,101.80, 21,135.15 and 9,090.96

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Solution

The fourth proportional to 14,101.80, 21,135.15 and 9,090.96 is: 13,625.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.80 : 21,135.15 = 9,090.96 : x
  2. Step 2: Convert to fraction form
    14,101.80/21,135.15 = 9,090.96/x
  3. Step 3: Cross multiply
    14,101.80x = 21,135.15 × 9,090.96
  4. Step 4: Simplify right side
    14,101.80x = 192,138,803.24
  5. Step 5: Solve for x
    x = 192,138,803.24/14,101.80
  6. Step 6: Final answer
    x = 13,625.13

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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.