Home / 12,721.51-19,074.84-4,397.95

Finding the Fourth Proportional to 12,721.51, 19,074.84 and 4,397.95

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Solution

The fourth proportional to 12,721.51, 19,074.84 and 4,397.95 is: 6,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.51 : 19,074.84 = 4,397.95 : x
  2. Step 2: Convert to fraction form
    12,721.51/19,074.84 = 4,397.95/x
  3. Step 3: Cross multiply
    12,721.51x = 19,074.84 × 4,397.95
  4. Step 4: Simplify right side
    12,721.51x = 83,890,192.58
  5. Step 5: Solve for x
    x = 83,890,192.58/12,721.51
  6. Step 6: Final answer
    x = 6,594.36

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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.