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Finding the Fourth Proportional to 6,515.68, 9,783.24 and 6,288.88

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Solution

The fourth proportional to 6,515.68, 9,783.24 and 6,288.88 is: 9,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.68 : 9,783.24 = 6,288.88 : x
  2. Step 2: Convert to fraction form
    6,515.68/9,783.24 = 6,288.88/x
  3. Step 3: Cross multiply
    6,515.68x = 9,783.24 × 6,288.88
  4. Step 4: Simplify right side
    6,515.68x = 61,525,622.37
  5. Step 5: Solve for x
    x = 61,525,622.37/6,515.68
  6. Step 6: Final answer
    x = 9,442.70

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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.