Home / 14,143.08-19,518.12-7,855.48

Finding the Fourth Proportional to 14,143.08, 19,518.12 and 7,855.48

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Solution

The fourth proportional to 14,143.08, 19,518.12 and 7,855.48 is: 10,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.08 : 19,518.12 = 7,855.48 : x
  2. Step 2: Convert to fraction form
    14,143.08/19,518.12 = 7,855.48/x
  3. Step 3: Cross multiply
    14,143.08x = 19,518.12 × 7,855.48
  4. Step 4: Simplify right side
    14,143.08x = 153,324,201.30
  5. Step 5: Solve for x
    x = 153,324,201.30/14,143.08
  6. Step 6: Final answer
    x = 10,840.93

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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.