Home / 13,822.36-19,074.14-7,853.20

Finding the Fourth Proportional to 13,822.36, 19,074.14 and 7,853.20

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Solution

The fourth proportional to 13,822.36, 19,074.14 and 7,853.20 is: 10,837.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.36 : 19,074.14 = 7,853.20 : x
  2. Step 2: Convert to fraction form
    13,822.36/19,074.14 = 7,853.20/x
  3. Step 3: Cross multiply
    13,822.36x = 19,074.14 × 7,853.20
  4. Step 4: Simplify right side
    13,822.36x = 149,793,108.13
  5. Step 5: Solve for x
    x = 149,793,108.13/13,822.36
  6. Step 6: Final answer
    x = 10,837.01

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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.