Home / 13,822.72-19,079.54-13,117.48

Finding the Fourth Proportional to 13,822.72, 19,079.54 and 13,117.48

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Solution

The fourth proportional to 13,822.72, 19,079.54 and 13,117.48 is: 18,106.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.72 : 19,079.54 = 13,117.48 : x
  2. Step 2: Convert to fraction form
    13,822.72/19,079.54 = 13,117.48/x
  3. Step 3: Cross multiply
    13,822.72x = 19,079.54 × 13,117.48
  4. Step 4: Simplify right side
    13,822.72x = 250,275,484.36
  5. Step 5: Solve for x
    x = 250,275,484.36/13,822.72
  6. Step 6: Final answer
    x = 18,106.10

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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.