Home / 13,905.64-19,190.27-7,618.01

Finding the Fourth Proportional to 13,905.64, 19,190.27 and 7,618.01

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Solution

The fourth proportional to 13,905.64, 19,190.27 and 7,618.01 is: 10,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.64 : 19,190.27 = 7,618.01 : x
  2. Step 2: Convert to fraction form
    13,905.64/19,190.27 = 7,618.01/x
  3. Step 3: Cross multiply
    13,905.64x = 19,190.27 × 7,618.01
  4. Step 4: Simplify right side
    13,905.64x = 146,191,630.67
  5. Step 5: Solve for x
    x = 146,191,630.67/13,905.64
  6. Step 6: Final answer
    x = 10,513.12

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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.