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Finding the Fourth Proportional to 9,960.95, 14,919.76 and 6,438.67

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Solution

The fourth proportional to 9,960.95, 14,919.76 and 6,438.67 is: 9,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,960.95 : 14,919.76 = 6,438.67 : x
  2. Step 2: Convert to fraction form
    9,960.95/14,919.76 = 6,438.67/x
  3. Step 3: Cross multiply
    9,960.95x = 14,919.76 × 6,438.67
  4. Step 4: Simplify right side
    9,960.95x = 96,063,411.12
  5. Step 5: Solve for x
    x = 96,063,411.12/9,960.95
  6. Step 6: Final answer
    x = 9,644.00

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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.