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Finding the Fourth Proportional to 13,057.16, 18,018.36 and 7,088.67

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Solution

The fourth proportional to 13,057.16, 18,018.36 and 7,088.67 is: 9,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.16 : 18,018.36 = 7,088.67 : x
  2. Step 2: Convert to fraction form
    13,057.16/18,018.36 = 7,088.67/x
  3. Step 3: Cross multiply
    13,057.16x = 18,018.36 × 7,088.67
  4. Step 4: Simplify right side
    13,057.16x = 127,726,207.98
  5. Step 5: Solve for x
    x = 127,726,207.98/13,057.16
  6. Step 6: Final answer
    x = 9,782.09

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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.