Home / 14,090.70-21,138.60-6,695.10

Finding the Fourth Proportional to 14,090.70, 21,138.60 and 6,695.10

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Solution

The fourth proportional to 14,090.70, 21,138.60 and 6,695.10 is: 10,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,090.70 : 21,138.60 = 6,695.10 : x
  2. Step 2: Convert to fraction form
    14,090.70/21,138.60 = 6,695.10/x
  3. Step 3: Cross multiply
    14,090.70x = 21,138.60 × 6,695.10
  4. Step 4: Simplify right side
    14,090.70x = 141,525,040.86
  5. Step 5: Solve for x
    x = 141,525,040.86/14,090.70
  6. Step 6: Final answer
    x = 10,043.86

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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.