Home / 15,443.51-21,327.17-13,192.25

Finding the Fourth Proportional to 15,443.51, 21,327.17 and 13,192.25

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Solution

The fourth proportional to 15,443.51, 21,327.17 and 13,192.25 is: 18,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443.51 : 21,327.17 = 13,192.25 : x
  2. Step 2: Convert to fraction form
    15,443.51/21,327.17 = 13,192.25/x
  3. Step 3: Cross multiply
    15,443.51x = 21,327.17 × 13,192.25
  4. Step 4: Simplify right side
    15,443.51x = 281,353,185.84
  5. Step 5: Solve for x
    x = 281,353,185.84/15,443.51
  6. Step 6: Final answer
    x = 18,218.22

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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.