Home / 13,826.91-19,081.08-7,539.29

Finding the Fourth Proportional to 13,826.91, 19,081.08 and 7,539.29

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Solution

The fourth proportional to 13,826.91, 19,081.08 and 7,539.29 is: 10,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.91 : 19,081.08 = 7,539.29 : x
  2. Step 2: Convert to fraction form
    13,826.91/19,081.08 = 7,539.29/x
  3. Step 3: Cross multiply
    13,826.91x = 19,081.08 × 7,539.29
  4. Step 4: Simplify right side
    13,826.91x = 143,857,700.23
  5. Step 5: Solve for x
    x = 143,857,700.23/13,826.91
  6. Step 6: Final answer
    x = 10,404.18

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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.