Home / 8,529.93-11,768.49-4,990.59

Finding the Fourth Proportional to 8,529.93, 11,768.49 and 4,990.59

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Solution

The fourth proportional to 8,529.93, 11,768.49 and 4,990.59 is: 6,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.93 : 11,768.49 = 4,990.59 : x
  2. Step 2: Convert to fraction form
    8,529.93/11,768.49 = 4,990.59/x
  3. Step 3: Cross multiply
    8,529.93x = 11,768.49 × 4,990.59
  4. Step 4: Simplify right side
    8,529.93x = 58,731,708.51
  5. Step 5: Solve for x
    x = 58,731,708.51/8,529.93
  6. Step 6: Final answer
    x = 6,885.37

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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.