Home / 12,954.16-17,857.70-9,165.66

Finding the Fourth Proportional to 12,954.16, 17,857.70 and 9,165.66

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Solution

The fourth proportional to 12,954.16, 17,857.70 and 9,165.66 is: 12,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.16 : 17,857.70 = 9,165.66 : x
  2. Step 2: Convert to fraction form
    12,954.16/17,857.70 = 9,165.66/x
  3. Step 3: Cross multiply
    12,954.16x = 17,857.70 × 9,165.66
  4. Step 4: Simplify right side
    12,954.16x = 163,677,528.16
  5. Step 5: Solve for x
    x = 163,677,528.16/12,954.16
  6. Step 6: Final answer
    x = 12,635.13

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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.