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Finding the Fourth Proportional to 14,785.13, 20,406.90 and 9,750.26

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Solution

The fourth proportional to 14,785.13, 20,406.90 and 9,750.26 is: 13,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.13 : 20,406.90 = 9,750.26 : x
  2. Step 2: Convert to fraction form
    14,785.13/20,406.90 = 9,750.26/x
  3. Step 3: Cross multiply
    14,785.13x = 20,406.90 × 9,750.26
  4. Step 4: Simplify right side
    14,785.13x = 198,972,478.76
  5. Step 5: Solve for x
    x = 198,972,478.76/14,785.13
  6. Step 6: Final answer
    x = 13,457.61

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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.