Home / 14,428.17-21,608.19-9,144.81

Finding the Fourth Proportional to 14,428.17, 21,608.19 and 9,144.81

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Solution

The fourth proportional to 14,428.17, 21,608.19 and 9,144.81 is: 13,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.17 : 21,608.19 = 9,144.81 : x
  2. Step 2: Convert to fraction form
    14,428.17/21,608.19 = 9,144.81/x
  3. Step 3: Cross multiply
    14,428.17x = 21,608.19 × 9,144.81
  4. Step 4: Simplify right side
    14,428.17x = 197,602,791.99
  5. Step 5: Solve for x
    x = 197,602,791.99/14,428.17
  6. Step 6: Final answer
    x = 13,695.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.