Home / 13,741.65-20,623.41-4,979.07

Finding the Fourth Proportional to 13,741.65, 20,623.41 and 4,979.07

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Solution

The fourth proportional to 13,741.65, 20,623.41 and 4,979.07 is: 7,472.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.65 : 20,623.41 = 4,979.07 : x
  2. Step 2: Convert to fraction form
    13,741.65/20,623.41 = 4,979.07/x
  3. Step 3: Cross multiply
    13,741.65x = 20,623.41 × 4,979.07
  4. Step 4: Simplify right side
    13,741.65x = 102,685,402.03
  5. Step 5: Solve for x
    x = 102,685,402.03/13,741.65
  6. Step 6: Final answer
    x = 7,472.57

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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.