Home / 13,163.18-18,159.35-7,854.93

Finding the Fourth Proportional to 13,163.18, 18,159.35 and 7,854.93

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Solution

The fourth proportional to 13,163.18, 18,159.35 and 7,854.93 is: 10,836.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.18 : 18,159.35 = 7,854.93 : x
  2. Step 2: Convert to fraction form
    13,163.18/18,159.35 = 7,854.93/x
  3. Step 3: Cross multiply
    13,163.18x = 18,159.35 × 7,854.93
  4. Step 4: Simplify right side
    13,163.18x = 142,640,383.82
  5. Step 5: Solve for x
    x = 142,640,383.82/13,163.18
  6. Step 6: Final answer
    x = 10,836.32

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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.