Home / 11,643.30-16,071.21-7,173.45

Finding the Fourth Proportional to 11,643.30, 16,071.21 and 7,173.45

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Solution

The fourth proportional to 11,643.30, 16,071.21 and 7,173.45 is: 9,901.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.30 : 16,071.21 = 7,173.45 : x
  2. Step 2: Convert to fraction form
    11,643.30/16,071.21 = 7,173.45/x
  3. Step 3: Cross multiply
    11,643.30x = 16,071.21 × 7,173.45
  4. Step 4: Simplify right side
    11,643.30x = 115,286,021.37
  5. Step 5: Solve for x
    x = 115,286,021.37/11,643.30
  6. Step 6: Final answer
    x = 9,901.49

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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.