Home / 13,826.46-19,080.45-7,858.38

Finding the Fourth Proportional to 13,826.46, 19,080.45 and 7,858.38

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Solution

The fourth proportional to 13,826.46, 19,080.45 and 7,858.38 is: 10,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.46 : 19,080.45 = 7,858.38 : x
  2. Step 2: Convert to fraction form
    13,826.46/19,080.45 = 7,858.38/x
  3. Step 3: Cross multiply
    13,826.46x = 19,080.45 × 7,858.38
  4. Step 4: Simplify right side
    13,826.46x = 149,941,426.67
  5. Step 5: Solve for x
    x = 149,941,426.67/13,826.46
  6. Step 6: Final answer
    x = 10,844.53

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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.