Home / 14,021.70-21,000.15-9,615.30

Finding the Fourth Proportional to 14,021.70, 21,000.15 and 9,615.30

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Solution

The fourth proportional to 14,021.70, 21,000.15 and 9,615.30 is: 14,400.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.70 : 21,000.15 = 9,615.30 : x
  2. Step 2: Convert to fraction form
    14,021.70/21,000.15 = 9,615.30/x
  3. Step 3: Cross multiply
    14,021.70x = 21,000.15 × 9,615.30
  4. Step 4: Simplify right side
    14,021.70x = 201,922,742.30
  5. Step 5: Solve for x
    x = 201,922,742.30/14,021.70
  6. Step 6: Final answer
    x = 14,400.73

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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.