Home / 14,419.33-21,485.65-12,847.25

Finding the Fourth Proportional to 14,419.33, 21,485.65 and 12,847.25

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Solution

The fourth proportional to 14,419.33, 21,485.65 and 12,847.25 is: 19,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.33 : 21,485.65 = 12,847.25 : x
  2. Step 2: Convert to fraction form
    14,419.33/21,485.65 = 12,847.25/x
  3. Step 3: Cross multiply
    14,419.33x = 21,485.65 × 12,847.25
  4. Step 4: Simplify right side
    14,419.33x = 276,031,516.96
  5. Step 5: Solve for x
    x = 276,031,516.96/14,419.33
  6. Step 6: Final answer
    x = 19,143.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.