Home / 21,152.64-29,183.04-12,766.08

Finding the Fourth Proportional to 21,152.64, 29,183.04 and 12,766.08

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Solution

The fourth proportional to 21,152.64, 29,183.04 and 12,766.08 is: 17,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.64 : 29,183.04 = 12,766.08 : x
  2. Step 2: Convert to fraction form
    21,152.64/29,183.04 = 12,766.08/x
  3. Step 3: Cross multiply
    21,152.64x = 29,183.04 × 12,766.08
  4. Step 4: Simplify right side
    21,152.64x = 372,553,023.28
  5. Step 5: Solve for x
    x = 372,553,023.28/21,152.64
  6. Step 6: Final answer
    x = 17,612.60

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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.