Home / 14,065.20-19,410.12-7,777.80

Finding the Fourth Proportional to 14,065.20, 19,410.12 and 7,777.80

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Solution

The fourth proportional to 14,065.20, 19,410.12 and 7,777.80 is: 10,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.20 : 19,410.12 = 7,777.80 : x
  2. Step 2: Convert to fraction form
    14,065.20/19,410.12 = 7,777.80/x
  3. Step 3: Cross multiply
    14,065.20x = 19,410.12 × 7,777.80
  4. Step 4: Simplify right side
    14,065.20x = 150,968,031.34
  5. Step 5: Solve for x
    x = 150,968,031.34/14,065.20
  6. Step 6: Final answer
    x = 10,733.44

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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.