Home / 11,901.04-16,421.07-7,185.58

Finding the Fourth Proportional to 11,901.04, 16,421.07 and 7,185.58

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Solution

The fourth proportional to 11,901.04, 16,421.07 and 7,185.58 is: 9,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,901.04 : 16,421.07 = 7,185.58 : x
  2. Step 2: Convert to fraction form
    11,901.04/16,421.07 = 7,185.58/x
  3. Step 3: Cross multiply
    11,901.04x = 16,421.07 × 7,185.58
  4. Step 4: Simplify right side
    11,901.04x = 117,994,912.17
  5. Step 5: Solve for x
    x = 117,994,912.17/11,901.04
  6. Step 6: Final answer
    x = 9,914.67

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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.