Home / 7,816.86-10,786.95-4,674.78

Finding the Fourth Proportional to 7,816.86, 10,786.95 and 4,674.78

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Solution

The fourth proportional to 7,816.86, 10,786.95 and 4,674.78 is: 6,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.86 : 10,786.95 = 4,674.78 : x
  2. Step 2: Convert to fraction form
    7,816.86/10,786.95 = 4,674.78/x
  3. Step 3: Cross multiply
    7,816.86x = 10,786.95 × 4,674.78
  4. Step 4: Simplify right side
    7,816.86x = 50,426,618.12
  5. Step 5: Solve for x
    x = 50,426,618.12/7,816.86
  6. Step 6: Final answer
    x = 6,451.01

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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.