Home / 12,917.66-17,826.39-7,328.66

Finding the Fourth Proportional to 12,917.66, 17,826.39 and 7,328.66

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Solution

The fourth proportional to 12,917.66, 17,826.39 and 7,328.66 is: 10,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.66 : 17,826.39 = 7,328.66 : x
  2. Step 2: Convert to fraction form
    12,917.66/17,826.39 = 7,328.66/x
  3. Step 3: Cross multiply
    12,917.66x = 17,826.39 × 7,328.66
  4. Step 4: Simplify right side
    12,917.66x = 130,643,462.21
  5. Step 5: Solve for x
    x = 130,643,462.21/12,917.66
  6. Step 6: Final answer
    x = 10,113.56

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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.