Home / 11,223.90-15,485.99-7,247.34

Finding the Fourth Proportional to 11,223.90, 15,485.99 and 7,247.34

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Solution

The fourth proportional to 11,223.90, 15,485.99 and 7,247.34 is: 9,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.90 : 15,485.99 = 7,247.34 : x
  2. Step 2: Convert to fraction form
    11,223.90/15,485.99 = 7,247.34/x
  3. Step 3: Cross multiply
    11,223.90x = 15,485.99 × 7,247.34
  4. Step 4: Simplify right side
    11,223.90x = 112,232,198.53
  5. Step 5: Solve for x
    x = 112,232,198.53/11,223.90
  6. Step 6: Final answer
    x = 9,999.39

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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.