Home / 26,811.96-40,218.90-8,345.40

Finding the Fourth Proportional to 26,811.96, 40,218.90 and 8,345.40

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Solution

The fourth proportional to 26,811.96, 40,218.90 and 8,345.40 is: 12,518.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,811.96 : 40,218.90 = 8,345.40 : x
  2. Step 2: Convert to fraction form
    26,811.96/40,218.90 = 8,345.40/x
  3. Step 3: Cross multiply
    26,811.96x = 40,218.90 × 8,345.40
  4. Step 4: Simplify right side
    26,811.96x = 335,642,808.06
  5. Step 5: Solve for x
    x = 335,642,808.06/26,811.96
  6. Step 6: Final answer
    x = 12,518.40

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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.