Home / 19,812.27-29,720.24-7,165.19

Finding the Fourth Proportional to 19,812.27, 29,720.24 and 7,165.19

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Solution

The fourth proportional to 19,812.27, 29,720.24 and 7,165.19 is: 10,748.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.27 : 29,720.24 = 7,165.19 : x
  2. Step 2: Convert to fraction form
    19,812.27/29,720.24 = 7,165.19/x
  3. Step 3: Cross multiply
    19,812.27x = 29,720.24 × 7,165.19
  4. Step 4: Simplify right side
    19,812.27x = 212,951,166.45
  5. Step 5: Solve for x
    x = 212,951,166.45/19,812.27
  6. Step 6: Final answer
    x = 10,748.45

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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.