Home / 14,320.76-19,762.58-8,731.76

Finding the Fourth Proportional to 14,320.76, 19,762.58 and 8,731.76

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Solution

The fourth proportional to 14,320.76, 19,762.58 and 8,731.76 is: 12,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.76 : 19,762.58 = 8,731.76 : x
  2. Step 2: Convert to fraction form
    14,320.76/19,762.58 = 8,731.76/x
  3. Step 3: Cross multiply
    14,320.76x = 19,762.58 × 8,731.76
  4. Step 4: Simplify right side
    14,320.76x = 172,562,028.56
  5. Step 5: Solve for x
    x = 172,562,028.56/14,320.76
  6. Step 6: Final answer
    x = 12,049.79

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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.