Home / 12,715.05-19,069.96-4,814.84

Finding the Fourth Proportional to 12,715.05, 19,069.96 and 4,814.84

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Solution

The fourth proportional to 12,715.05, 19,069.96 and 4,814.84 is: 7,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.05 : 19,069.96 = 4,814.84 : x
  2. Step 2: Convert to fraction form
    12,715.05/19,069.96 = 4,814.84/x
  3. Step 3: Cross multiply
    12,715.05x = 19,069.96 × 4,814.84
  4. Step 4: Simplify right side
    12,715.05x = 91,818,710.86
  5. Step 5: Solve for x
    x = 91,818,710.86/12,715.05
  6. Step 6: Final answer
    x = 7,221.27

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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.