Home / 13,141.46-19,741.35-12,726.74

Finding the Fourth Proportional to 13,141.46, 19,741.35 and 12,726.74

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Solution

The fourth proportional to 13,141.46, 19,741.35 and 12,726.74 is: 19,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141.46 : 19,741.35 = 12,726.74 : x
  2. Step 2: Convert to fraction form
    13,141.46/19,741.35 = 12,726.74/x
  3. Step 3: Cross multiply
    13,141.46x = 19,741.35 × 12,726.74
  4. Step 4: Simplify right side
    13,141.46x = 251,243,028.70
  5. Step 5: Solve for x
    x = 251,243,028.70/13,141.46
  6. Step 6: Final answer
    x = 19,118.35

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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.