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Finding the Fourth Proportional to 9,889.74, 14,840.08 and 5,509.67

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Solution

The fourth proportional to 9,889.74, 14,840.08 and 5,509.67 is: 8,267.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.74 : 14,840.08 = 5,509.67 : x
  2. Step 2: Convert to fraction form
    9,889.74/14,840.08 = 5,509.67/x
  3. Step 3: Cross multiply
    9,889.74x = 14,840.08 × 5,509.67
  4. Step 4: Simplify right side
    9,889.74x = 81,763,855.60
  5. Step 5: Solve for x
    x = 81,763,855.60/9,889.74
  6. Step 6: Final answer
    x = 8,267.54

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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.