Home / 7,977.09-11,008.40-4,440.99

Finding the Fourth Proportional to 7,977.09, 11,008.40 and 4,440.99

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Solution

The fourth proportional to 7,977.09, 11,008.40 and 4,440.99 is: 6,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.09 : 11,008.40 = 4,440.99 : x
  2. Step 2: Convert to fraction form
    7,977.09/11,008.40 = 4,440.99/x
  3. Step 3: Cross multiply
    7,977.09x = 11,008.40 × 4,440.99
  4. Step 4: Simplify right side
    7,977.09x = 48,888,213.39
  5. Step 5: Solve for x
    x = 48,888,213.39/7,977.09
  6. Step 6: Final answer
    x = 6,128.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.