Home / 10,102.08-13,940.16-5,625.48

Finding the Fourth Proportional to 10,102.08, 13,940.16 and 5,625.48

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Solution

The fourth proportional to 10,102.08, 13,940.16 and 5,625.48 is: 7,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.08 : 13,940.16 = 5,625.48 : x
  2. Step 2: Convert to fraction form
    10,102.08/13,940.16 = 5,625.48/x
  3. Step 3: Cross multiply
    10,102.08x = 13,940.16 × 5,625.48
  4. Step 4: Simplify right side
    10,102.08x = 78,420,091.28
  5. Step 5: Solve for x
    x = 78,420,091.28/10,102.08
  6. Step 6: Final answer
    x = 7,762.77

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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.