Home / 9,189.65-13,785.85-4,259.79

Finding the Fourth Proportional to 9,189.65, 13,785.85 and 4,259.79

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Solution

The fourth proportional to 9,189.65, 13,785.85 and 4,259.79 is: 6,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.65 : 13,785.85 = 4,259.79 : x
  2. Step 2: Convert to fraction form
    9,189.65/13,785.85 = 4,259.79/x
  3. Step 3: Cross multiply
    9,189.65x = 13,785.85 × 4,259.79
  4. Step 4: Simplify right side
    9,189.65x = 58,724,807.33
  5. Step 5: Solve for x
    x = 58,724,807.33/9,189.65
  6. Step 6: Final answer
    x = 6,390.32

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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.