Home / 13,921.13-19,211.16-7,633.64

Finding the Fourth Proportional to 13,921.13, 19,211.16 and 7,633.64

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Solution

The fourth proportional to 13,921.13, 19,211.16 and 7,633.64 is: 10,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.13 : 19,211.16 = 7,633.64 : x
  2. Step 2: Convert to fraction form
    13,921.13/19,211.16 = 7,633.64/x
  3. Step 3: Cross multiply
    13,921.13x = 19,211.16 × 7,633.64
  4. Step 4: Simplify right side
    13,921.13x = 146,650,954.74
  5. Step 5: Solve for x
    x = 146,650,954.74/13,921.13
  6. Step 6: Final answer
    x = 10,534.42

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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.