Home / 12,884.69-19,331.64-7,948.59

Finding the Fourth Proportional to 12,884.69, 19,331.64 and 7,948.59

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Solution

The fourth proportional to 12,884.69, 19,331.64 and 7,948.59 is: 11,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.69 : 19,331.64 = 7,948.59 : x
  2. Step 2: Convert to fraction form
    12,884.69/19,331.64 = 7,948.59/x
  3. Step 3: Cross multiply
    12,884.69x = 19,331.64 × 7,948.59
  4. Step 4: Simplify right side
    12,884.69x = 153,659,280.39
  5. Step 5: Solve for x
    x = 153,659,280.39/12,884.69
  6. Step 6: Final answer
    x = 11,925.73

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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.