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Finding the Fourth Proportional to 9,328.70, 14,000.70 and 9,255.80

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Solution

The fourth proportional to 9,328.70, 14,000.70 and 9,255.80 is: 13,891.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.70 : 14,000.70 = 9,255.80 : x
  2. Step 2: Convert to fraction form
    9,328.70/14,000.70 = 9,255.80/x
  3. Step 3: Cross multiply
    9,328.70x = 14,000.70 × 9,255.80
  4. Step 4: Simplify right side
    9,328.70x = 129,587,679.06
  5. Step 5: Solve for x
    x = 129,587,679.06/9,328.70
  6. Step 6: Final answer
    x = 13,891.29

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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.