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Finding the Fourth Proportional to 7,699.86, 10,625.90 and 4,674.11

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Solution

The fourth proportional to 7,699.86, 10,625.90 and 4,674.11 is: 6,450.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,699.86 : 10,625.90 = 4,674.11 : x
  2. Step 2: Convert to fraction form
    7,699.86/10,625.90 = 4,674.11/x
  3. Step 3: Cross multiply
    7,699.86x = 10,625.90 × 4,674.11
  4. Step 4: Simplify right side
    7,699.86x = 49,666,548.95
  5. Step 5: Solve for x
    x = 49,666,548.95/7,699.86
  6. Step 6: Final answer
    x = 6,450.32

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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.