Home / 14,085.56-21,107.37-12,840.82

Finding the Fourth Proportional to 14,085.56, 21,107.37 and 12,840.82

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Solution

The fourth proportional to 14,085.56, 21,107.37 and 12,840.82 is: 19,242.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.56 : 21,107.37 = 12,840.82 : x
  2. Step 2: Convert to fraction form
    14,085.56/21,107.37 = 12,840.82/x
  3. Step 3: Cross multiply
    14,085.56x = 21,107.37 × 12,840.82
  4. Step 4: Simplify right side
    14,085.56x = 271,035,938.84
  5. Step 5: Solve for x
    x = 271,035,938.84/14,085.56
  6. Step 6: Final answer
    x = 19,242.11

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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.