Home / 10,999.23-15,174.95-7,224.44

Finding the Fourth Proportional to 10,999.23, 15,174.95 and 7,224.44

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Solution

The fourth proportional to 10,999.23, 15,174.95 and 7,224.44 is: 9,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.23 : 15,174.95 = 7,224.44 : x
  2. Step 2: Convert to fraction form
    10,999.23/15,174.95 = 7,224.44/x
  3. Step 3: Cross multiply
    10,999.23x = 15,174.95 × 7,224.44
  4. Step 4: Simplify right side
    10,999.23x = 109,630,403.78
  5. Step 5: Solve for x
    x = 109,630,403.78/10,999.23
  6. Step 6: Final answer
    x = 9,967.10

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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.