Home / 15,091.99-20,813.36-9,427.25

Finding the Fourth Proportional to 15,091.99, 20,813.36 and 9,427.25

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Solution

The fourth proportional to 15,091.99, 20,813.36 and 9,427.25 is: 13,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.99 : 20,813.36 = 9,427.25 : x
  2. Step 2: Convert to fraction form
    15,091.99/20,813.36 = 9,427.25/x
  3. Step 3: Cross multiply
    15,091.99x = 20,813.36 × 9,427.25
  4. Step 4: Simplify right side
    15,091.99x = 196,212,752.96
  5. Step 5: Solve for x
    x = 196,212,752.96/15,091.99
  6. Step 6: Final answer
    x = 13,001.12

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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.