Home / 8,968.36-12,376.34-4,989.84

Finding the Fourth Proportional to 8,968.36, 12,376.34 and 4,989.84

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Solution

The fourth proportional to 8,968.36, 12,376.34 and 4,989.84 is: 6,885.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.36 : 12,376.34 = 4,989.84 : x
  2. Step 2: Convert to fraction form
    8,968.36/12,376.34 = 4,989.84/x
  3. Step 3: Cross multiply
    8,968.36x = 12,376.34 × 4,989.84
  4. Step 4: Simplify right side
    8,968.36x = 61,755,956.39
  5. Step 5: Solve for x
    x = 61,755,956.39/8,968.36
  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.