Home / 14,979.30-20,667.74-9,156.93

Finding the Fourth Proportional to 14,979.30, 20,667.74 and 9,156.93

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Solution

The fourth proportional to 14,979.30, 20,667.74 and 9,156.93 is: 12,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.30 : 20,667.74 = 9,156.93 : x
  2. Step 2: Convert to fraction form
    14,979.30/20,667.74 = 9,156.93/x
  3. Step 3: Cross multiply
    14,979.30x = 20,667.74 × 9,156.93
  4. Step 4: Simplify right side
    14,979.30x = 189,253,048.44
  5. Step 5: Solve for x
    x = 189,253,048.44/14,979.30
  6. Step 6: Final answer
    x = 12,634.31

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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.