Home / 12,830.79-19,246.72-4,065.51

Finding the Fourth Proportional to 12,830.79, 19,246.72 and 4,065.51

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Solution

The fourth proportional to 12,830.79, 19,246.72 and 4,065.51 is: 6,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830.79 : 19,246.72 = 4,065.51 : x
  2. Step 2: Convert to fraction form
    12,830.79/19,246.72 = 4,065.51/x
  3. Step 3: Cross multiply
    12,830.79x = 19,246.72 × 4,065.51
  4. Step 4: Simplify right side
    12,830.79x = 78,247,626.23
  5. Step 5: Solve for x
    x = 78,247,626.23/12,830.79
  6. Step 6: Final answer
    x = 6,098.43

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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.