Home / 9,418.68-12,989.04-6,055.56

Finding the Fourth Proportional to 9,418.68, 12,989.04 and 6,055.56

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Solution

The fourth proportional to 9,418.68, 12,989.04 and 6,055.56 is: 8,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.68 : 12,989.04 = 6,055.56 : x
  2. Step 2: Convert to fraction form
    9,418.68/12,989.04 = 6,055.56/x
  3. Step 3: Cross multiply
    9,418.68x = 12,989.04 × 6,055.56
  4. Step 4: Simplify right side
    9,418.68x = 78,655,911.06
  5. Step 5: Solve for x
    x = 78,655,911.06/9,418.68
  6. Step 6: Final answer
    x = 8,351.05

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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.