Home / 9,106.20-12,567.12-5,127.66

Finding the Fourth Proportional to 9,106.20, 12,567.12 and 5,127.66

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Solution

The fourth proportional to 9,106.20, 12,567.12 and 5,127.66 is: 7,076.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,106.20 : 12,567.12 = 5,127.66 : x
  2. Step 2: Convert to fraction form
    9,106.20/12,567.12 = 5,127.66/x
  3. Step 3: Cross multiply
    9,106.20x = 12,567.12 × 5,127.66
  4. Step 4: Simplify right side
    9,106.20x = 64,439,918.54
  5. Step 5: Solve for x
    x = 64,439,918.54/9,106.20
  6. Step 6: Final answer
    x = 7,076.49

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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.