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Finding the Fourth Proportional to 7,803.68, 10,769.10 and 4,659.80

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Solution

The fourth proportional to 7,803.68, 10,769.10 and 4,659.80 is: 6,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.68 : 10,769.10 = 4,659.80 : x
  2. Step 2: Convert to fraction form
    7,803.68/10,769.10 = 4,659.80/x
  3. Step 3: Cross multiply
    7,803.68x = 10,769.10 × 4,659.80
  4. Step 4: Simplify right side
    7,803.68x = 50,181,852.18
  5. Step 5: Solve for x
    x = 50,181,852.18/7,803.68
  6. Step 6: Final answer
    x = 6,430.54

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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.