Home / 14,015.44-19,345.80-11,172.88

Finding the Fourth Proportional to 14,015.44, 19,345.80 and 11,172.88

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Solution

The fourth proportional to 14,015.44, 19,345.80 and 11,172.88 is: 15,422.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.44 : 19,345.80 = 11,172.88 : x
  2. Step 2: Convert to fraction form
    14,015.44/19,345.80 = 11,172.88/x
  3. Step 3: Cross multiply
    14,015.44x = 19,345.80 × 11,172.88
  4. Step 4: Simplify right side
    14,015.44x = 216,148,301.90
  5. Step 5: Solve for x
    x = 216,148,301.90/14,015.44
  6. Step 6: Final answer
    x = 15,422.16

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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.