Home / 15,709.51-21,656.82-12,494.62

Finding the Fourth Proportional to 15,709.51, 21,656.82 and 12,494.62

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Solution

The fourth proportional to 15,709.51, 21,656.82 and 12,494.62 is: 17,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,709.51 : 21,656.82 = 12,494.62 : x
  2. Step 2: Convert to fraction form
    15,709.51/21,656.82 = 12,494.62/x
  3. Step 3: Cross multiply
    15,709.51x = 21,656.82 × 12,494.62
  4. Step 4: Simplify right side
    15,709.51x = 270,593,739.95
  5. Step 5: Solve for x
    x = 270,593,739.95/15,709.51
  6. Step 6: Final answer
    x = 17,224.84

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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.