Home / 10,724.80-14,807.46-6,697.78

Finding the Fourth Proportional to 10,724.80, 14,807.46 and 6,697.78

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Solution

The fourth proportional to 10,724.80, 14,807.46 and 6,697.78 is: 9,247.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,724.80 : 14,807.46 = 6,697.78 : x
  2. Step 2: Convert to fraction form
    10,724.80/14,807.46 = 6,697.78/x
  3. Step 3: Cross multiply
    10,724.80x = 14,807.46 × 6,697.78
  4. Step 4: Simplify right side
    10,724.80x = 99,177,109.44
  5. Step 5: Solve for x
    x = 99,177,109.44/10,724.80
  6. Step 6: Final answer
    x = 9,247.46

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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.