Home / 9,345.38-14,020.80-2,771.72

Finding the Fourth Proportional to 9,345.38, 14,020.80 and 2,771.72

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Solution

The fourth proportional to 9,345.38, 14,020.80 and 2,771.72 is: 4,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.38 : 14,020.80 = 2,771.72 : x
  2. Step 2: Convert to fraction form
    9,345.38/14,020.80 = 2,771.72/x
  3. Step 3: Cross multiply
    9,345.38x = 14,020.80 × 2,771.72
  4. Step 4: Simplify right side
    9,345.38x = 38,861,703.86
  5. Step 5: Solve for x
    x = 38,861,703.86/9,345.38
  6. Step 6: Final answer
    x = 4,158.39

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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.