Home / 13,908.59-20,853.63-8,975.54

Finding the Fourth Proportional to 13,908.59, 20,853.63 and 8,975.54

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Solution

The fourth proportional to 13,908.59, 20,853.63 and 8,975.54 is: 13,457.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.59 : 20,853.63 = 8,975.54 : x
  2. Step 2: Convert to fraction form
    13,908.59/20,853.63 = 8,975.54/x
  3. Step 3: Cross multiply
    13,908.59x = 20,853.63 × 8,975.54
  4. Step 4: Simplify right side
    13,908.59x = 187,172,590.21
  5. Step 5: Solve for x
    x = 187,172,590.21/13,908.59
  6. Step 6: Final answer
    x = 13,457.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.