Home / 13,477.28-20,215.24-5,156.66

Finding the Fourth Proportional to 13,477.28, 20,215.24 and 5,156.66

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Solution

The fourth proportional to 13,477.28, 20,215.24 and 5,156.66 is: 7,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.28 : 20,215.24 = 5,156.66 : x
  2. Step 2: Convert to fraction form
    13,477.28/20,215.24 = 5,156.66/x
  3. Step 3: Cross multiply
    13,477.28x = 20,215.24 × 5,156.66
  4. Step 4: Simplify right side
    13,477.28x = 104,242,992.64
  5. Step 5: Solve for x
    x = 104,242,992.64/13,477.28
  6. Step 6: Final answer
    x = 7,734.72

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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.