Home / 13,861.17-19,133.97-9,156.69

Finding the Fourth Proportional to 13,861.17, 19,133.97 and 9,156.69

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Solution

The fourth proportional to 13,861.17, 19,133.97 and 9,156.69 is: 12,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.17 : 19,133.97 = 9,156.69 : x
  2. Step 2: Convert to fraction form
    13,861.17/19,133.97 = 9,156.69/x
  3. Step 3: Cross multiply
    13,861.17x = 19,133.97 × 9,156.69
  4. Step 4: Simplify right side
    13,861.17x = 175,203,831.76
  5. Step 5: Solve for x
    x = 175,203,831.76/13,861.17
  6. Step 6: Final answer
    x = 12,639.90

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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.