Home / 14,979.75-20,623.47-11,787.42

Finding the Fourth Proportional to 14,979.75, 20,623.47 and 11,787.42

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Solution

The fourth proportional to 14,979.75, 20,623.47 and 11,787.42 is: 16,228.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.75 : 20,623.47 = 11,787.42 : x
  2. Step 2: Convert to fraction form
    14,979.75/20,623.47 = 11,787.42/x
  3. Step 3: Cross multiply
    14,979.75x = 20,623.47 × 11,787.42
  4. Step 4: Simplify right side
    14,979.75x = 243,097,502.75
  5. Step 5: Solve for x
    x = 243,097,502.75/14,979.75
  6. Step 6: Final answer
    x = 16,228.41

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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.