Home / 12,829.36-19,176.18-11,150.32

Finding the Fourth Proportional to 12,829.36, 19,176.18 and 11,150.32

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Solution

The fourth proportional to 12,829.36, 19,176.18 and 11,150.32 is: 16,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.36 : 19,176.18 = 11,150.32 : x
  2. Step 2: Convert to fraction form
    12,829.36/19,176.18 = 11,150.32/x
  3. Step 3: Cross multiply
    12,829.36x = 19,176.18 × 11,150.32
  4. Step 4: Simplify right side
    12,829.36x = 213,820,543.38
  5. Step 5: Solve for x
    x = 213,820,543.38/12,829.36
  6. Step 6: Final answer
    x = 16,666.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.