Home / 12,870.12-19,304.10-4,104.84

Finding the Fourth Proportional to 12,870.12, 19,304.10 and 4,104.84

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Solution

The fourth proportional to 12,870.12, 19,304.10 and 4,104.84 is: 6,156.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,870.12 : 19,304.10 = 4,104.84 : x
  2. Step 2: Convert to fraction form
    12,870.12/19,304.10 = 4,104.84/x
  3. Step 3: Cross multiply
    12,870.12x = 19,304.10 × 4,104.84
  4. Step 4: Simplify right side
    12,870.12x = 79,240,241.84
  5. Step 5: Solve for x
    x = 79,240,241.84/12,870.12
  6. Step 6: Final answer
    x = 6,156.92

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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.