Home / 12,232.16-16,880.52-6,643.28

Finding the Fourth Proportional to 12,232.16, 16,880.52 and 6,643.28

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Solution

The fourth proportional to 12,232.16, 16,880.52 and 6,643.28 is: 9,167.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,232.16 : 16,880.52 = 6,643.28 : x
  2. Step 2: Convert to fraction form
    12,232.16/16,880.52 = 6,643.28/x
  3. Step 3: Cross multiply
    12,232.16x = 16,880.52 × 6,643.28
  4. Step 4: Simplify right side
    12,232.16x = 112,142,020.91
  5. Step 5: Solve for x
    x = 112,142,020.91/12,232.16
  6. Step 6: Final answer
    x = 9,167.80

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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.