Home / 14,787.68-20,403.04-8,816.64

Finding the Fourth Proportional to 14,787.68, 20,403.04 and 8,816.64

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Solution

The fourth proportional to 14,787.68, 20,403.04 and 8,816.64 is: 12,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.68 : 20,403.04 = 8,816.64 : x
  2. Step 2: Convert to fraction form
    14,787.68/20,403.04 = 8,816.64/x
  3. Step 3: Cross multiply
    14,787.68x = 20,403.04 × 8,816.64
  4. Step 4: Simplify right side
    14,787.68x = 179,886,258.59
  5. Step 5: Solve for x
    x = 179,886,258.59/14,787.68
  6. Step 6: Final answer
    x = 12,164.60

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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.