Home / 8,431.98-11,638.84-4,894.50

Finding the Fourth Proportional to 8,431.98, 11,638.84 and 4,894.50

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Solution

The fourth proportional to 8,431.98, 11,638.84 and 4,894.50 is: 6,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.98 : 11,638.84 = 4,894.50 : x
  2. Step 2: Convert to fraction form
    8,431.98/11,638.84 = 4,894.50/x
  3. Step 3: Cross multiply
    8,431.98x = 11,638.84 × 4,894.50
  4. Step 4: Simplify right side
    8,431.98x = 56,966,302.38
  5. Step 5: Solve for x
    x = 56,966,302.38/8,431.98
  6. Step 6: Final answer
    x = 6,755.98

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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.