Home / 12,278.08-16,945.96-7,242.01

Finding the Fourth Proportional to 12,278.08, 16,945.96 and 7,242.01

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Solution

The fourth proportional to 12,278.08, 16,945.96 and 7,242.01 is: 9,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.08 : 16,945.96 = 7,242.01 : x
  2. Step 2: Convert to fraction form
    12,278.08/16,945.96 = 7,242.01/x
  3. Step 3: Cross multiply
    12,278.08x = 16,945.96 × 7,242.01
  4. Step 4: Simplify right side
    12,278.08x = 122,722,764.89
  5. Step 5: Solve for x
    x = 122,722,764.89/12,278.08
  6. Step 6: Final answer
    x = 9,995.27

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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.