Home / 14,191.80-21,393.99-13,240.32

Finding the Fourth Proportional to 14,191.80, 21,393.99 and 13,240.32

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Solution

The fourth proportional to 14,191.80, 21,393.99 and 13,240.32 is: 19,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.80 : 21,393.99 = 13,240.32 : x
  2. Step 2: Convert to fraction form
    14,191.80/21,393.99 = 13,240.32/x
  3. Step 3: Cross multiply
    14,191.80x = 21,393.99 × 13,240.32
  4. Step 4: Simplify right side
    14,191.80x = 283,263,273.68
  5. Step 5: Solve for x
    x = 283,263,273.68/14,191.80
  6. Step 6: Final answer
    x = 19,959.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.