Home / 7,923.70-10,936.65-4,780.90

Finding the Fourth Proportional to 7,923.70, 10,936.65 and 4,780.90

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Solution

The fourth proportional to 7,923.70, 10,936.65 and 4,780.90 is: 6,598.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.70 : 10,936.65 = 4,780.90 : x
  2. Step 2: Convert to fraction form
    7,923.70/10,936.65 = 4,780.90/x
  3. Step 3: Cross multiply
    7,923.70x = 10,936.65 × 4,780.90
  4. Step 4: Simplify right side
    7,923.70x = 52,287,029.99
  5. Step 5: Solve for x
    x = 52,287,029.99/7,923.70
  6. Step 6: Final answer
    x = 6,598.81

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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.