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Finding the Fourth Proportional to 9,435, 13,014.60 and 6,919.94

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Solution

The fourth proportional to 9,435, 13,014.60 and 6,919.94 is: 9,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435 : 13,014.60 = 6,919.94 : x
  2. Step 2: Convert to fraction form
    9,435/13,014.60 = 6,919.94/x
  3. Step 3: Cross multiply
    9,435x = 13,014.60 × 6,919.94
  4. Step 4: Simplify right side
    9,435x = 90,060,251.12
  5. Step 5: Solve for x
    x = 90,060,251.12/9,435
  6. Step 6: Final answer
    x = 9,545.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.