Home / 12,930.05-19,394.69-3,570.63

Finding the Fourth Proportional to 12,930.05, 19,394.69 and 3,570.63

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Solution

The fourth proportional to 12,930.05, 19,394.69 and 3,570.63 is: 5,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.05 : 19,394.69 = 3,570.63 : x
  2. Step 2: Convert to fraction form
    12,930.05/19,394.69 = 3,570.63/x
  3. Step 3: Cross multiply
    12,930.05x = 19,394.69 × 3,570.63
  4. Step 4: Simplify right side
    12,930.05x = 69,251,244.10
  5. Step 5: Solve for x
    x = 69,251,244.10/12,930.05
  6. Step 6: Final answer
    x = 5,355.84

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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.