Home / 12,675.30-19,007.28-3,911.10

Finding the Fourth Proportional to 12,675.30, 19,007.28 and 3,911.10

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Solution

The fourth proportional to 12,675.30, 19,007.28 and 3,911.10 is: 5,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.30 : 19,007.28 = 3,911.10 : x
  2. Step 2: Convert to fraction form
    12,675.30/19,007.28 = 3,911.10/x
  3. Step 3: Cross multiply
    12,675.30x = 19,007.28 × 3,911.10
  4. Step 4: Simplify right side
    12,675.30x = 74,339,372.81
  5. Step 5: Solve for x
    x = 74,339,372.81/12,675.30
  6. Step 6: Final answer
    x = 5,864.90

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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.