Home / 12,930.34-19,395.11-3,570.92

Finding the Fourth Proportional to 12,930.34, 19,395.11 and 3,570.92

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Solution

The fourth proportional to 12,930.34, 19,395.11 and 3,570.92 is: 5,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.34 : 19,395.11 = 3,570.92 : x
  2. Step 2: Convert to fraction form
    12,930.34/19,395.11 = 3,570.92/x
  3. Step 3: Cross multiply
    12,930.34x = 19,395.11 × 3,570.92
  4. Step 4: Simplify right side
    12,930.34x = 69,258,443.62
  5. Step 5: Solve for x
    x = 69,258,443.62/12,930.34
  6. Step 6: Final answer
    x = 5,356.28

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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.