Home / 14,065.50-19,410.62-7,777.88

Finding the Fourth Proportional to 14,065.50, 19,410.62 and 7,777.88

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Solution

The fourth proportional to 14,065.50, 19,410.62 and 7,777.88 is: 10,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.50 : 19,410.62 = 7,777.88 : x
  2. Step 2: Convert to fraction form
    14,065.50/19,410.62 = 7,777.88/x
  3. Step 3: Cross multiply
    14,065.50x = 19,410.62 × 7,777.88
  4. Step 4: Simplify right side
    14,065.50x = 150,973,473.09
  5. Step 5: Solve for x
    x = 150,973,473.09/14,065.50
  6. Step 6: Final answer
    x = 10,733.60

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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.