Home / 19,461.69-29,165.13-11,129.22

Finding the Fourth Proportional to 19,461.69, 29,165.13 and 11,129.22

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Solution

The fourth proportional to 19,461.69, 29,165.13 and 11,129.22 is: 16,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.69 : 29,165.13 = 11,129.22 : x
  2. Step 2: Convert to fraction form
    19,461.69/29,165.13 = 11,129.22/x
  3. Step 3: Cross multiply
    19,461.69x = 29,165.13 × 11,129.22
  4. Step 4: Simplify right side
    19,461.69x = 324,585,148.10
  5. Step 5: Solve for x
    x = 324,585,148.10/19,461.69
  6. Step 6: Final answer
    x = 16,678.16

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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.