Home / 15,054.67-20,778.89-10,019.09

Finding the Fourth Proportional to 15,054.67, 20,778.89 and 10,019.09

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Solution

The fourth proportional to 15,054.67, 20,778.89 and 10,019.09 is: 13,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.67 : 20,778.89 = 10,019.09 : x
  2. Step 2: Convert to fraction form
    15,054.67/20,778.89 = 10,019.09/x
  3. Step 3: Cross multiply
    15,054.67x = 20,778.89 × 10,019.09
  4. Step 4: Simplify right side
    15,054.67x = 208,185,569.01
  5. Step 5: Solve for x
    x = 208,185,569.01/15,054.67
  6. Step 6: Final answer
    x = 13,828.64

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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.