Home / 12,678.37-19,017.98-4,358.31

Finding the Fourth Proportional to 12,678.37, 19,017.98 and 4,358.31

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Solution

The fourth proportional to 12,678.37, 19,017.98 and 4,358.31 is: 6,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.37 : 19,017.98 = 4,358.31 : x
  2. Step 2: Convert to fraction form
    12,678.37/19,017.98 = 4,358.31/x
  3. Step 3: Cross multiply
    12,678.37x = 19,017.98 × 4,358.31
  4. Step 4: Simplify right side
    12,678.37x = 82,886,307.14
  5. Step 5: Solve for x
    x = 82,886,307.14/12,678.37
  6. Step 6: Final answer
    x = 6,537.62

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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.