Home / 26,185.89-39,284.99-8,655.72

Finding the Fourth Proportional to 26,185.89, 39,284.99 and 8,655.72

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Solution

The fourth proportional to 26,185.89, 39,284.99 and 8,655.72 is: 12,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,185.89 : 39,284.99 = 8,655.72 : x
  2. Step 2: Convert to fraction form
    26,185.89/39,284.99 = 8,655.72/x
  3. Step 3: Cross multiply
    26,185.89x = 39,284.99 × 8,655.72
  4. Step 4: Simplify right side
    26,185.89x = 340,039,830.36
  5. Step 5: Solve for x
    x = 340,039,830.36/26,185.89
  6. Step 6: Final answer
    x = 12,985.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.