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Finding the Fourth Proportional to 12,973.88, 17,774.28 and 12,487.95

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Solution

The fourth proportional to 12,973.88, 17,774.28 and 12,487.95 is: 17,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.88 : 17,774.28 = 12,487.95 : x
  2. Step 2: Convert to fraction form
    12,973.88/17,774.28 = 12,487.95/x
  3. Step 3: Cross multiply
    12,973.88x = 17,774.28 × 12,487.95
  4. Step 4: Simplify right side
    12,973.88x = 221,964,319.93
  5. Step 5: Solve for x
    x = 221,964,319.93/12,973.88
  6. Step 6: Final answer
    x = 17,108.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.