Home / 13,781.46-19,018.80-8,473.26

Finding the Fourth Proportional to 13,781.46, 19,018.80 and 8,473.26

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Solution

The fourth proportional to 13,781.46, 19,018.80 and 8,473.26 is: 11,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.46 : 19,018.80 = 8,473.26 : x
  2. Step 2: Convert to fraction form
    13,781.46/19,018.80 = 8,473.26/x
  3. Step 3: Cross multiply
    13,781.46x = 19,018.80 × 8,473.26
  4. Step 4: Simplify right side
    13,781.46x = 161,151,237.29
  5. Step 5: Solve for x
    x = 161,151,237.29/13,781.46
  6. Step 6: Final answer
    x = 11,693.34

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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.