Home / 13,838.66-19,088.82-9,861.05

Finding the Fourth Proportional to 13,838.66, 19,088.82 and 9,861.05

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Solution

The fourth proportional to 13,838.66, 19,088.82 and 9,861.05 is: 13,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.66 : 19,088.82 = 9,861.05 : x
  2. Step 2: Convert to fraction form
    13,838.66/19,088.82 = 9,861.05/x
  3. Step 3: Cross multiply
    13,838.66x = 19,088.82 × 9,861.05
  4. Step 4: Simplify right side
    13,838.66x = 188,235,856.18
  5. Step 5: Solve for x
    x = 188,235,856.18/13,838.66
  6. Step 6: Final answer
    x = 13,602.18

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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.