Home / 8,968.36-12,374.91-4,989.46

Finding the Fourth Proportional to 8,968.36, 12,374.91 and 4,989.46

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Solution

The fourth proportional to 8,968.36, 12,374.91 and 4,989.46 is: 6,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.36 : 12,374.91 = 4,989.46 : x
  2. Step 2: Convert to fraction form
    8,968.36/12,374.91 = 4,989.46/x
  3. Step 3: Cross multiply
    8,968.36x = 12,374.91 × 4,989.46
  4. Step 4: Simplify right side
    8,968.36x = 61,744,118.45
  5. Step 5: Solve for x
    x = 61,744,118.45/8,968.36
  6. Step 6: Final answer
    x = 6,884.66

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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.