Home / 9,145.40-13,739.96-5,864.90

Finding the Fourth Proportional to 9,145.40, 13,739.96 and 5,864.90

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Solution

The fourth proportional to 9,145.40, 13,739.96 and 5,864.90 is: 8,811.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145.40 : 13,739.96 = 5,864.90 : x
  2. Step 2: Convert to fraction form
    9,145.40/13,739.96 = 5,864.90/x
  3. Step 3: Cross multiply
    9,145.40x = 13,739.96 × 5,864.90
  4. Step 4: Simplify right side
    9,145.40x = 80,583,437.37
  5. Step 5: Solve for x
    x = 80,583,437.37/9,145.40
  6. Step 6: Final answer
    x = 8,811.37

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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.