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Finding the Fourth Proportional to 10,861.70, 16,264.98 and 9,102.08

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Solution

The fourth proportional to 10,861.70, 16,264.98 and 9,102.08 is: 13,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.70 : 16,264.98 = 9,102.08 : x
  2. Step 2: Convert to fraction form
    10,861.70/16,264.98 = 9,102.08/x
  3. Step 3: Cross multiply
    10,861.70x = 16,264.98 × 9,102.08
  4. Step 4: Simplify right side
    10,861.70x = 148,045,128.83
  5. Step 5: Solve for x
    x = 148,045,128.83/10,861.70
  6. Step 6: Final answer
    x = 13,630.01

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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.