Home / 19,350.76-28,976.64-12,756.76

Finding the Fourth Proportional to 19,350.76, 28,976.64 and 12,756.76

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Solution

The fourth proportional to 19,350.76, 28,976.64 and 12,756.76 is: 19,102.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.76 : 28,976.64 = 12,756.76 : x
  2. Step 2: Convert to fraction form
    19,350.76/28,976.64 = 12,756.76/x
  3. Step 3: Cross multiply
    19,350.76x = 28,976.64 × 12,756.76
  4. Step 4: Simplify right side
    19,350.76x = 369,648,042.09
  5. Step 5: Solve for x
    x = 369,648,042.09/19,350.76
  6. Step 6: Final answer
    x = 19,102.51

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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.