Home / 13,258.63-19,896.11-11,897.20

Finding the Fourth Proportional to 13,258.63, 19,896.11 and 11,897.20

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Solution

The fourth proportional to 13,258.63, 19,896.11 and 11,897.20 is: 17,853.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.63 : 19,896.11 = 11,897.20 : x
  2. Step 2: Convert to fraction form
    13,258.63/19,896.11 = 11,897.20/x
  3. Step 3: Cross multiply
    13,258.63x = 19,896.11 × 11,897.20
  4. Step 4: Simplify right side
    13,258.63x = 236,707,840.93
  5. Step 5: Solve for x
    x = 236,707,840.93/13,258.63
  6. Step 6: Final answer
    x = 17,853.12

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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.