Home / 9,159.87-13,739.04-2,919.63

Finding the Fourth Proportional to 9,159.87, 13,739.04 and 2,919.63

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Solution

The fourth proportional to 9,159.87, 13,739.04 and 2,919.63 is: 4,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.87 : 13,739.04 = 2,919.63 : x
  2. Step 2: Convert to fraction form
    9,159.87/13,739.04 = 2,919.63/x
  3. Step 3: Cross multiply
    9,159.87x = 13,739.04 × 2,919.63
  4. Step 4: Simplify right side
    9,159.87x = 40,112,913.36
  5. Step 5: Solve for x
    x = 40,112,913.36/9,159.87
  6. Step 6: Final answer
    x = 4,379.20

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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.