Home / 19,326.40-28,963.88-12,654.44

Finding the Fourth Proportional to 19,326.40, 28,963.88 and 12,654.44

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Solution

The fourth proportional to 19,326.40, 28,963.88 and 12,654.44 is: 18,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.40 : 28,963.88 = 12,654.44 : x
  2. Step 2: Convert to fraction form
    19,326.40/28,963.88 = 12,654.44/x
  3. Step 3: Cross multiply
    19,326.40x = 28,963.88 × 12,654.44
  4. Step 4: Simplify right side
    19,326.40x = 366,521,681.63
  5. Step 5: Solve for x
    x = 366,521,681.63/19,326.40
  6. Step 6: Final answer
    x = 18,964.82

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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.