Home / 19,313.48-28,964.63-8,777.63

Finding the Fourth Proportional to 19,313.48, 28,964.63 and 8,777.63

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Solution

The fourth proportional to 19,313.48, 28,964.63 and 8,777.63 is: 13,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.48 : 28,964.63 = 8,777.63 : x
  2. Step 2: Convert to fraction form
    19,313.48/28,964.63 = 8,777.63/x
  3. Step 3: Cross multiply
    19,313.48x = 28,964.63 × 8,777.63
  4. Step 4: Simplify right side
    19,313.48x = 254,240,682.35
  5. Step 5: Solve for x
    x = 254,240,682.35/19,313.48
  6. Step 6: Final answer
    x = 13,163.90

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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.