Home / 15,364.50-21,197.18-8,989.06

Finding the Fourth Proportional to 15,364.50, 21,197.18 and 8,989.06

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Solution

The fourth proportional to 15,364.50, 21,197.18 and 8,989.06 is: 12,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.50 : 21,197.18 = 8,989.06 : x
  2. Step 2: Convert to fraction form
    15,364.50/21,197.18 = 8,989.06/x
  3. Step 3: Cross multiply
    15,364.50x = 21,197.18 × 8,989.06
  4. Step 4: Simplify right side
    15,364.50x = 190,542,722.85
  5. Step 5: Solve for x
    x = 190,542,722.85/15,364.50
  6. Step 6: Final answer
    x = 12,401.49

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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.