Home / 13,152.74-19,726.20-3,790.69

Finding the Fourth Proportional to 13,152.74, 19,726.20 and 3,790.69

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Solution

The fourth proportional to 13,152.74, 19,726.20 and 3,790.69 is: 5,685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.74 : 19,726.20 = 3,790.69 : x
  2. Step 2: Convert to fraction form
    13,152.74/19,726.20 = 3,790.69/x
  3. Step 3: Cross multiply
    13,152.74x = 19,726.20 × 3,790.69
  4. Step 4: Simplify right side
    13,152.74x = 74,775,859.76
  5. Step 5: Solve for x
    x = 74,775,859.76/13,152.74
  6. Step 6: Final answer
    x = 5,685.19

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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.