Home / 12,871.82-19,308.08-4,106.74

Finding the Fourth Proportional to 12,871.82, 19,308.08 and 4,106.74

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Solution

The fourth proportional to 12,871.82, 19,308.08 and 4,106.74 is: 6,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.82 : 19,308.08 = 4,106.74 : x
  2. Step 2: Convert to fraction form
    12,871.82/19,308.08 = 4,106.74/x
  3. Step 3: Cross multiply
    12,871.82x = 19,308.08 × 4,106.74
  4. Step 4: Simplify right side
    12,871.82x = 79,293,264.46
  5. Step 5: Solve for x
    x = 79,293,264.46/12,871.82
  6. Step 6: Final answer
    x = 6,160.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.