Home / 14,072.36-21,111.48-5,307.21

Finding the Fourth Proportional to 14,072.36, 21,111.48 and 5,307.21

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Solution

The fourth proportional to 14,072.36, 21,111.48 and 5,307.21 is: 7,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.36 : 21,111.48 = 5,307.21 : x
  2. Step 2: Convert to fraction form
    14,072.36/21,111.48 = 5,307.21/x
  3. Step 3: Cross multiply
    14,072.36x = 21,111.48 × 5,307.21
  4. Step 4: Simplify right side
    14,072.36x = 112,043,057.77
  5. Step 5: Solve for x
    x = 112,043,057.77/14,072.36
  6. Step 6: Final answer
    x = 7,961.93

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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.