Home / 19,314.26-26,651.47-10,815.20

Finding the Fourth Proportional to 19,314.26, 26,651.47 and 10,815.20

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Solution

The fourth proportional to 19,314.26, 26,651.47 and 10,815.20 is: 14,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.26 : 26,651.47 = 10,815.20 : x
  2. Step 2: Convert to fraction form
    19,314.26/26,651.47 = 10,815.20/x
  3. Step 3: Cross multiply
    19,314.26x = 26,651.47 × 10,815.20
  4. Step 4: Simplify right side
    19,314.26x = 288,240,818.05
  5. Step 5: Solve for x
    x = 288,240,818.05/19,314.26
  6. Step 6: Final answer
    x = 14,923.73

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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.