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Finding the Fourth Proportional to 12,666.04, 17,479.18 and 7,361.88

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Solution

The fourth proportional to 12,666.04, 17,479.18 and 7,361.88 is: 10,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.04 : 17,479.18 = 7,361.88 : x
  2. Step 2: Convert to fraction form
    12,666.04/17,479.18 = 7,361.88/x
  3. Step 3: Cross multiply
    12,666.04x = 17,479.18 × 7,361.88
  4. Step 4: Simplify right side
    12,666.04x = 128,679,625.66
  5. Step 5: Solve for x
    x = 128,679,625.66/12,666.04
  6. Step 6: Final answer
    x = 10,159.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.