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Finding the Fourth Proportional to 9,818.00, 14,745.87 and 8,415.59

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Solution

The fourth proportional to 9,818.00, 14,745.87 and 8,415.59 is: 12,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.00 : 14,745.87 = 8,415.59 : x
  2. Step 2: Convert to fraction form
    9,818.00/14,745.87 = 8,415.59/x
  3. Step 3: Cross multiply
    9,818.00x = 14,745.87 × 8,415.59
  4. Step 4: Simplify right side
    9,818.00x = 124,095,122.38
  5. Step 5: Solve for x
    x = 124,095,122.38/9,818.00
  6. Step 6: Final answer
    x = 12,639.56

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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.