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Finding the Fourth Proportional to 10,230.60, 14,111.78 and 6,450.60

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Solution

The fourth proportional to 10,230.60, 14,111.78 and 6,450.60 is: 8,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,230.60 : 14,111.78 = 6,450.60 : x
  2. Step 2: Convert to fraction form
    10,230.60/14,111.78 = 6,450.60/x
  3. Step 3: Cross multiply
    10,230.60x = 14,111.78 × 6,450.60
  4. Step 4: Simplify right side
    10,230.60x = 91,029,448.07
  5. Step 5: Solve for x
    x = 91,029,448.07/10,230.60
  6. Step 6: Final answer
    x = 8,897.76

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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.