Home / 14,065.76-19,410.60-7,778.12

Finding the Fourth Proportional to 14,065.76, 19,410.60 and 7,778.12

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Solution

The fourth proportional to 14,065.76, 19,410.60 and 7,778.12 is: 10,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.76 : 19,410.60 = 7,778.12 : x
  2. Step 2: Convert to fraction form
    14,065.76/19,410.60 = 7,778.12/x
  3. Step 3: Cross multiply
    14,065.76x = 19,410.60 × 7,778.12
  4. Step 4: Simplify right side
    14,065.76x = 150,977,976.07
  5. Step 5: Solve for x
    x = 150,977,976.07/14,065.76
  6. Step 6: Final answer
    x = 10,733.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.