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Finding the Fourth Proportional to 13,670.00, 18,868.04 and 7,705.13

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Solution

The fourth proportional to 13,670.00, 18,868.04 and 7,705.13 is: 10,635.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.00 : 18,868.04 = 7,705.13 : x
  2. Step 2: Convert to fraction form
    13,670.00/18,868.04 = 7,705.13/x
  3. Step 3: Cross multiply
    13,670.00x = 18,868.04 × 7,705.13
  4. Step 4: Simplify right side
    13,670.00x = 145,380,597.07
  5. Step 5: Solve for x
    x = 145,380,597.07/13,670.00
  6. Step 6: Final answer
    x = 10,635.01

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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.