Home / 13,826.08-19,080-7,538.56

Finding the Fourth Proportional to 13,826.08, 19,080 and 7,538.56

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Solution

The fourth proportional to 13,826.08, 19,080 and 7,538.56 is: 10,403.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.08 : 19,080 = 7,538.56 : x
  2. Step 2: Convert to fraction form
    13,826.08/19,080 = 7,538.56/x
  3. Step 3: Cross multiply
    13,826.08x = 19,080 × 7,538.56
  4. Step 4: Simplify right side
    13,826.08x = 143,835,724.80
  5. Step 5: Solve for x
    x = 143,835,724.80/13,826.08
  6. Step 6: Final answer
    x = 10,403.22

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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.