Home / 13,458.45-18,563.40-8,077.22

Finding the Fourth Proportional to 13,458.45, 18,563.40 and 8,077.22

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Solution

The fourth proportional to 13,458.45, 18,563.40 and 8,077.22 is: 11,141.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,458.45 : 18,563.40 = 8,077.22 : x
  2. Step 2: Convert to fraction form
    13,458.45/18,563.40 = 8,077.22/x
  3. Step 3: Cross multiply
    13,458.45x = 18,563.40 × 8,077.22
  4. Step 4: Simplify right side
    13,458.45x = 149,940,572.93
  5. Step 5: Solve for x
    x = 149,940,572.93/13,458.45
  6. Step 6: Final answer
    x = 11,141.00

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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.