Home / 13,111.48-19,645.35-9,208.90

Finding the Fourth Proportional to 13,111.48, 19,645.35 and 9,208.90

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Solution

The fourth proportional to 13,111.48, 19,645.35 and 9,208.90 is: 13,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.48 : 19,645.35 = 9,208.90 : x
  2. Step 2: Convert to fraction form
    13,111.48/19,645.35 = 9,208.90/x
  3. Step 3: Cross multiply
    13,111.48x = 19,645.35 × 9,208.90
  4. Step 4: Simplify right side
    13,111.48x = 180,912,053.64
  5. Step 5: Solve for x
    x = 180,912,053.64/13,111.48
  6. Step 6: Final answer
    x = 13,797.99

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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.