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Finding the Fourth Proportional to 13,300.90, 18,354.49 and 7,331.46

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Solution

The fourth proportional to 13,300.90, 18,354.49 and 7,331.46 is: 10,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.90 : 18,354.49 = 7,331.46 : x
  2. Step 2: Convert to fraction form
    13,300.90/18,354.49 = 7,331.46/x
  3. Step 3: Cross multiply
    13,300.90x = 18,354.49 × 7,331.46
  4. Step 4: Simplify right side
    13,300.90x = 134,565,209.26
  5. Step 5: Solve for x
    x = 134,565,209.26/13,300.90
  6. Step 6: Final answer
    x = 10,117.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.