Home / 18,721.58-25,829.51-12,010.84

Finding the Fourth Proportional to 18,721.58, 25,829.51 and 12,010.84

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Solution

The fourth proportional to 18,721.58, 25,829.51 and 12,010.84 is: 16,570.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.58 : 25,829.51 = 12,010.84 : x
  2. Step 2: Convert to fraction form
    18,721.58/25,829.51 = 12,010.84/x
  3. Step 3: Cross multiply
    18,721.58x = 25,829.51 × 12,010.84
  4. Step 4: Simplify right side
    18,721.58x = 310,233,987.26
  5. Step 5: Solve for x
    x = 310,233,987.26/18,721.58
  6. Step 6: Final answer
    x = 16,570.93

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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.