Home / 9,345.75-14,020.86-3,189.75

Finding the Fourth Proportional to 9,345.75, 14,020.86 and 3,189.75

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Solution

The fourth proportional to 9,345.75, 14,020.86 and 3,189.75 is: 4,785.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.75 : 14,020.86 = 3,189.75 : x
  2. Step 2: Convert to fraction form
    9,345.75/14,020.86 = 3,189.75/x
  3. Step 3: Cross multiply
    9,345.75x = 14,020.86 × 3,189.75
  4. Step 4: Simplify right side
    9,345.75x = 44,723,038.19
  5. Step 5: Solve for x
    x = 44,723,038.19/9,345.75
  6. Step 6: Final answer
    x = 4,785.39

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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.