Home / 26,457.64-39,686.49-8,939.77

Finding the Fourth Proportional to 26,457.64, 39,686.49 and 8,939.77

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Solution

The fourth proportional to 26,457.64, 39,686.49 and 8,939.77 is: 13,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,457.64 : 39,686.49 = 8,939.77 : x
  2. Step 2: Convert to fraction form
    26,457.64/39,686.49 = 8,939.77/x
  3. Step 3: Cross multiply
    26,457.64x = 39,686.49 × 8,939.77
  4. Step 4: Simplify right side
    26,457.64x = 354,787,993.49
  5. Step 5: Solve for x
    x = 354,787,993.49/26,457.64
  6. Step 6: Final answer
    x = 13,409.66

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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.