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Finding the Fourth Proportional to 6,285.69, 9,420.63 and 5,503.83

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Solution

The fourth proportional to 6,285.69, 9,420.63 and 5,503.83 is: 8,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,285.69 : 9,420.63 = 5,503.83 : x
  2. Step 2: Convert to fraction form
    6,285.69/9,420.63 = 5,503.83/x
  3. Step 3: Cross multiply
    6,285.69x = 9,420.63 × 5,503.83
  4. Step 4: Simplify right side
    6,285.69x = 51,849,546.01
  5. Step 5: Solve for x
    x = 51,849,546.01/6,285.69
  6. Step 6: Final answer
    x = 8,248.82

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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.