Home / 19,064.99-28,570.25-8,378.57

Finding the Fourth Proportional to 19,064.99, 28,570.25 and 8,378.57

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Solution

The fourth proportional to 19,064.99, 28,570.25 and 8,378.57 is: 12,555.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,064.99 : 28,570.25 = 8,378.57 : x
  2. Step 2: Convert to fraction form
    19,064.99/28,570.25 = 8,378.57/x
  3. Step 3: Cross multiply
    19,064.99x = 28,570.25 × 8,378.57
  4. Step 4: Simplify right side
    19,064.99x = 239,377,717.64
  5. Step 5: Solve for x
    x = 239,377,717.64/19,064.99
  6. Step 6: Final answer
    x = 12,555.88

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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.