Home / 19,109.89-26,374.35-11,152.45

Finding the Fourth Proportional to 19,109.89, 26,374.35 and 11,152.45

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Solution

The fourth proportional to 19,109.89, 26,374.35 and 11,152.45 is: 15,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.89 : 26,374.35 = 11,152.45 : x
  2. Step 2: Convert to fraction form
    19,109.89/26,374.35 = 11,152.45/x
  3. Step 3: Cross multiply
    19,109.89x = 26,374.35 × 11,152.45
  4. Step 4: Simplify right side
    19,109.89x = 294,138,619.66
  5. Step 5: Solve for x
    x = 294,138,619.66/19,109.89
  6. Step 6: Final answer
    x = 15,391.96

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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.