Home / 9,106.63-12,567.12-5,127.76

Finding the Fourth Proportional to 9,106.63, 12,567.12 and 5,127.76

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Solution

The fourth proportional to 9,106.63, 12,567.12 and 5,127.76 is: 7,076.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,106.63 : 12,567.12 = 5,127.76 : x
  2. Step 2: Convert to fraction form
    9,106.63/12,567.12 = 5,127.76/x
  3. Step 3: Cross multiply
    9,106.63x = 12,567.12 × 5,127.76
  4. Step 4: Simplify right side
    9,106.63x = 64,441,175.25
  5. Step 5: Solve for x
    x = 64,441,175.25/9,106.63
  6. Step 6: Final answer
    x = 7,076.29

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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.