Home / 12,888.41-19,335.45-4,124.21

Finding the Fourth Proportional to 12,888.41, 19,335.45 and 4,124.21

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Solution

The fourth proportional to 12,888.41, 19,335.45 and 4,124.21 is: 6,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.41 : 19,335.45 = 4,124.21 : x
  2. Step 2: Convert to fraction form
    12,888.41/19,335.45 = 4,124.21/x
  3. Step 3: Cross multiply
    12,888.41x = 19,335.45 × 4,124.21
  4. Step 4: Simplify right side
    12,888.41x = 79,743,456.24
  5. Step 5: Solve for x
    x = 79,743,456.24/12,888.41
  6. Step 6: Final answer
    x = 6,187.22

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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.