Home / 14,106.20-21,147.74-7,077.72

Finding the Fourth Proportional to 14,106.20, 21,147.74 and 7,077.72

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Solution

The fourth proportional to 14,106.20, 21,147.74 and 7,077.72 is: 10,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.20 : 21,147.74 = 7,077.72 : x
  2. Step 2: Convert to fraction form
    14,106.20/21,147.74 = 7,077.72/x
  3. Step 3: Cross multiply
    14,106.20x = 21,147.74 × 7,077.72
  4. Step 4: Simplify right side
    14,106.20x = 149,677,746.96
  5. Step 5: Solve for x
    x = 149,677,746.96/14,106.20
  6. Step 6: Final answer
    x = 10,610.78

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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.