Home / 13,899.47-19,181.03-7,930.98

Finding the Fourth Proportional to 13,899.47, 19,181.03 and 7,930.98

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Solution

The fourth proportional to 13,899.47, 19,181.03 and 7,930.98 is: 10,944.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.47 : 19,181.03 = 7,930.98 : x
  2. Step 2: Convert to fraction form
    13,899.47/19,181.03 = 7,930.98/x
  3. Step 3: Cross multiply
    13,899.47x = 19,181.03 × 7,930.98
  4. Step 4: Simplify right side
    13,899.47x = 152,124,325.65
  5. Step 5: Solve for x
    x = 152,124,325.65/13,899.47
  6. Step 6: Final answer
    x = 10,944.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.