Home / 13,185.66-18,202.59-8,477.94

Finding the Fourth Proportional to 13,185.66, 18,202.59 and 8,477.94

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Solution

The fourth proportional to 13,185.66, 18,202.59 and 8,477.94 is: 11,703.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.66 : 18,202.59 = 8,477.94 : x
  2. Step 2: Convert to fraction form
    13,185.66/18,202.59 = 8,477.94/x
  3. Step 3: Cross multiply
    13,185.66x = 18,202.59 × 8,477.94
  4. Step 4: Simplify right side
    13,185.66x = 154,320,465.86
  5. Step 5: Solve for x
    x = 154,320,465.86/13,185.66
  6. Step 6: Final answer
    x = 11,703.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.