Home / 13,088.24-18,060.78-8,620.82

Finding the Fourth Proportional to 13,088.24, 18,060.78 and 8,620.82

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Solution

The fourth proportional to 13,088.24, 18,060.78 and 8,620.82 is: 11,896.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.24 : 18,060.78 = 8,620.82 : x
  2. Step 2: Convert to fraction form
    13,088.24/18,060.78 = 8,620.82/x
  3. Step 3: Cross multiply
    13,088.24x = 18,060.78 × 8,620.82
  4. Step 4: Simplify right side
    13,088.24x = 155,698,733.44
  5. Step 5: Solve for x
    x = 155,698,733.44/13,088.24
  6. Step 6: Final answer
    x = 11,896.08

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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.