Home / 13,661.36-18,848.95-7,997.48

Finding the Fourth Proportional to 13,661.36, 18,848.95 and 7,997.48

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Solution

The fourth proportional to 13,661.36, 18,848.95 and 7,997.48 is: 11,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.36 : 18,848.95 = 7,997.48 : x
  2. Step 2: Convert to fraction form
    13,661.36/18,848.95 = 7,997.48/x
  3. Step 3: Cross multiply
    13,661.36x = 18,848.95 × 7,997.48
  4. Step 4: Simplify right side
    13,661.36x = 150,744,208.10
  5. Step 5: Solve for x
    x = 150,744,208.10/13,661.36
  6. Step 6: Final answer
    x = 11,034.35

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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.