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Finding the Fourth Proportional to 13,773.90, 19,008.12 and 7,486.27

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Solution

The fourth proportional to 13,773.90, 19,008.12 and 7,486.27 is: 10,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.90 : 19,008.12 = 7,486.27 : x
  2. Step 2: Convert to fraction form
    13,773.90/19,008.12 = 7,486.27/x
  3. Step 3: Cross multiply
    13,773.90x = 19,008.12 × 7,486.27
  4. Step 4: Simplify right side
    13,773.90x = 142,299,918.51
  5. Step 5: Solve for x
    x = 142,299,918.51/13,773.90
  6. Step 6: Final answer
    x = 10,331.13

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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.