Home / 9,889.28-14,825.79-4,621.68

Finding the Fourth Proportional to 9,889.28, 14,825.79 and 4,621.68

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Solution

The fourth proportional to 9,889.28, 14,825.79 and 4,621.68 is: 6,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.28 : 14,825.79 = 4,621.68 : x
  2. Step 2: Convert to fraction form
    9,889.28/14,825.79 = 4,621.68/x
  3. Step 3: Cross multiply
    9,889.28x = 14,825.79 × 4,621.68
  4. Step 4: Simplify right side
    9,889.28x = 68,520,057.13
  5. Step 5: Solve for x
    x = 68,520,057.13/9,889.28
  6. Step 6: Final answer
    x = 6,928.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.