Home / 13,826.21-19,072.86-9,351.47

Finding the Fourth Proportional to 13,826.21, 19,072.86 and 9,351.47

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Solution

The fourth proportional to 13,826.21, 19,072.86 and 9,351.47 is: 12,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.21 : 19,072.86 = 9,351.47 : x
  2. Step 2: Convert to fraction form
    13,826.21/19,072.86 = 9,351.47/x
  3. Step 3: Cross multiply
    13,826.21x = 19,072.86 × 9,351.47
  4. Step 4: Simplify right side
    13,826.21x = 178,359,182.74
  5. Step 5: Solve for x
    x = 178,359,182.74/13,826.21
  6. Step 6: Final answer
    x = 12,900.08

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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.