Home / 12,954.32-17,855.44-9,172.64

Finding the Fourth Proportional to 12,954.32, 17,855.44 and 9,172.64

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Solution

The fourth proportional to 12,954.32, 17,855.44 and 9,172.64 is: 12,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.32 : 17,855.44 = 9,172.64 : x
  2. Step 2: Convert to fraction form
    12,954.32/17,855.44 = 9,172.64/x
  3. Step 3: Cross multiply
    12,954.32x = 17,855.44 × 9,172.64
  4. Step 4: Simplify right side
    12,954.32x = 163,781,523.16
  5. Step 5: Solve for x
    x = 163,781,523.16/12,954.32
  6. Step 6: Final answer
    x = 12,643.00

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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.