Home / 26,521.36-39,777.72-8,990.80

Finding the Fourth Proportional to 26,521.36, 39,777.72 and 8,990.80

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Solution

The fourth proportional to 26,521.36, 39,777.72 and 8,990.80 is: 13,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,521.36 : 39,777.72 = 8,990.80 : x
  2. Step 2: Convert to fraction form
    26,521.36/39,777.72 = 8,990.80/x
  3. Step 3: Cross multiply
    26,521.36x = 39,777.72 × 8,990.80
  4. Step 4: Simplify right side
    26,521.36x = 357,633,524.98
  5. Step 5: Solve for x
    x = 357,633,524.98/26,521.36
  6. Step 6: Final answer
    x = 13,484.74

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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.