Home / 8,968.29-12,376.41-4,989.77

Finding the Fourth Proportional to 8,968.29, 12,376.41 and 4,989.77

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Solution

The fourth proportional to 8,968.29, 12,376.41 and 4,989.77 is: 6,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.29 : 12,376.41 = 4,989.77 : x
  2. Step 2: Convert to fraction form
    8,968.29/12,376.41 = 4,989.77/x
  3. Step 3: Cross multiply
    8,968.29x = 12,376.41 × 4,989.77
  4. Step 4: Simplify right side
    8,968.29x = 61,755,451.56
  5. Step 5: Solve for x
    x = 61,755,451.56/8,968.29
  6. Step 6: Final answer
    x = 6,885.98

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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.