Home / 11,154.90-16,740.44-8,989.77

Finding the Fourth Proportional to 11,154.90, 16,740.44 and 8,989.77

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Solution

The fourth proportional to 11,154.90, 16,740.44 and 8,989.77 is: 13,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.90 : 16,740.44 = 8,989.77 : x
  2. Step 2: Convert to fraction form
    11,154.90/16,740.44 = 8,989.77/x
  3. Step 3: Cross multiply
    11,154.90x = 16,740.44 × 8,989.77
  4. Step 4: Simplify right side
    11,154.90x = 150,492,727.77
  5. Step 5: Solve for x
    x = 150,492,727.77/11,154.90
  6. Step 6: Final answer
    x = 13,491.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.