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Finding the Fourth Proportional to 13,773.48, 19,007.14 and 7,485.80

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Solution

The fourth proportional to 13,773.48, 19,007.14 and 7,485.80 is: 10,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.48 : 19,007.14 = 7,485.80 : x
  2. Step 2: Convert to fraction form
    13,773.48/19,007.14 = 7,485.80/x
  3. Step 3: Cross multiply
    13,773.48x = 19,007.14 × 7,485.80
  4. Step 4: Simplify right side
    13,773.48x = 142,283,648.61
  5. Step 5: Solve for x
    x = 142,283,648.61/13,773.48
  6. Step 6: Final answer
    x = 10,330.26

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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.