Home / 13,477.89-20,216.40-3,616.65

Finding the Fourth Proportional to 13,477.89, 20,216.40 and 3,616.65

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Solution

The fourth proportional to 13,477.89, 20,216.40 and 3,616.65 is: 5,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.89 : 20,216.40 = 3,616.65 : x
  2. Step 2: Convert to fraction form
    13,477.89/20,216.40 = 3,616.65/x
  3. Step 3: Cross multiply
    13,477.89x = 20,216.40 × 3,616.65
  4. Step 4: Simplify right side
    13,477.89x = 73,115,643.06
  5. Step 5: Solve for x
    x = 73,115,643.06/13,477.89
  6. Step 6: Final answer
    x = 5,424.86

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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.