Home / 13,225.29-18,251.30-7,257.35

Finding the Fourth Proportional to 13,225.29, 18,251.30 and 7,257.35

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Solution

The fourth proportional to 13,225.29, 18,251.30 and 7,257.35 is: 10,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.29 : 18,251.30 = 7,257.35 : x
  2. Step 2: Convert to fraction form
    13,225.29/18,251.30 = 7,257.35/x
  3. Step 3: Cross multiply
    13,225.29x = 18,251.30 × 7,257.35
  4. Step 4: Simplify right side
    13,225.29x = 132,455,998.94
  5. Step 5: Solve for x
    x = 132,455,998.94/13,225.29
  6. Step 6: Final answer
    x = 10,015.36

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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.