Home / 26,911.68-40,362.85-8,187.18

Finding the Fourth Proportional to 26,911.68, 40,362.85 and 8,187.18

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Solution

The fourth proportional to 26,911.68, 40,362.85 and 8,187.18 is: 12,279.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.68 : 40,362.85 = 8,187.18 : x
  2. Step 2: Convert to fraction form
    26,911.68/40,362.85 = 8,187.18/x
  3. Step 3: Cross multiply
    26,911.68x = 40,362.85 × 8,187.18
  4. Step 4: Simplify right side
    26,911.68x = 330,457,918.26
  5. Step 5: Solve for x
    x = 330,457,918.26/26,911.68
  6. Step 6: Final answer
    x = 12,279.35

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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.