Home / 12,078.14-16,666.83-6,772.22

Finding the Fourth Proportional to 12,078.14, 16,666.83 and 6,772.22

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Solution

The fourth proportional to 12,078.14, 16,666.83 and 6,772.22 is: 9,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.14 : 16,666.83 = 6,772.22 : x
  2. Step 2: Convert to fraction form
    12,078.14/16,666.83 = 6,772.22/x
  3. Step 3: Cross multiply
    12,078.14x = 16,666.83 × 6,772.22
  4. Step 4: Simplify right side
    12,078.14x = 112,871,439.46
  5. Step 5: Solve for x
    x = 112,871,439.46/12,078.14
  6. Step 6: Final answer
    x = 9,345.10

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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.