Home / 9,992.36-14,988.80-3,418.50

Finding the Fourth Proportional to 9,992.36, 14,988.80 and 3,418.50

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Solution

The fourth proportional to 9,992.36, 14,988.80 and 3,418.50 is: 5,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.36 : 14,988.80 = 3,418.50 : x
  2. Step 2: Convert to fraction form
    9,992.36/14,988.80 = 3,418.50/x
  3. Step 3: Cross multiply
    9,992.36x = 14,988.80 × 3,418.50
  4. Step 4: Simplify right side
    9,992.36x = 51,239,258.33
  5. Step 5: Solve for x
    x = 51,239,258.33/9,992.36
  6. Step 6: Final answer
    x = 5,127.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.