Home / 12,931.99-19,394.44-3,569.77

Finding the Fourth Proportional to 12,931.99, 19,394.44 and 3,569.77

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Solution

The fourth proportional to 12,931.99, 19,394.44 and 3,569.77 is: 5,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.99 : 19,394.44 = 3,569.77 : x
  2. Step 2: Convert to fraction form
    12,931.99/19,394.44 = 3,569.77/x
  3. Step 3: Cross multiply
    12,931.99x = 19,394.44 × 3,569.77
  4. Step 4: Simplify right side
    12,931.99x = 69,233,690.08
  5. Step 5: Solve for x
    x = 69,233,690.08/12,931.99
  6. Step 6: Final answer
    x = 5,353.68

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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.