Home / 19,407.08-26,780.58-11,449.64

Finding the Fourth Proportional to 19,407.08, 26,780.58 and 11,449.64

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Solution

The fourth proportional to 19,407.08, 26,780.58 and 11,449.64 is: 15,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.08 : 26,780.58 = 11,449.64 : x
  2. Step 2: Convert to fraction form
    19,407.08/26,780.58 = 11,449.64/x
  3. Step 3: Cross multiply
    19,407.08x = 26,780.58 × 11,449.64
  4. Step 4: Simplify right side
    19,407.08x = 306,627,999.99
  5. Step 5: Solve for x
    x = 306,627,999.99/19,407.08
  6. Step 6: Final answer
    x = 15,799.80

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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.