Home / 11,173.80-15,420.24-7,403.52

Finding the Fourth Proportional to 11,173.80, 15,420.24 and 7,403.52

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Solution

The fourth proportional to 11,173.80, 15,420.24 and 7,403.52 is: 10,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.80 : 15,420.24 = 7,403.52 : x
  2. Step 2: Convert to fraction form
    11,173.80/15,420.24 = 7,403.52/x
  3. Step 3: Cross multiply
    11,173.80x = 15,420.24 × 7,403.52
  4. Step 4: Simplify right side
    11,173.80x = 114,164,055.24
  5. Step 5: Solve for x
    x = 114,164,055.24/11,173.80
  6. Step 6: Final answer
    x = 10,217.12

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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.