Home / 10,993.55-15,172.19-6,278.54

Finding the Fourth Proportional to 10,993.55, 15,172.19 and 6,278.54

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Solution

The fourth proportional to 10,993.55, 15,172.19 and 6,278.54 is: 8,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,993.55 : 15,172.19 = 6,278.54 : x
  2. Step 2: Convert to fraction form
    10,993.55/15,172.19 = 6,278.54/x
  3. Step 3: Cross multiply
    10,993.55x = 15,172.19 × 6,278.54
  4. Step 4: Simplify right side
    10,993.55x = 95,259,094.55
  5. Step 5: Solve for x
    x = 95,259,094.55/10,993.55
  6. Step 6: Final answer
    x = 8,665.00

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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.