Home / 19,485.68-26,888.60-11,928.76

Finding the Fourth Proportional to 19,485.68, 26,888.60 and 11,928.76

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Solution

The fourth proportional to 19,485.68, 26,888.60 and 11,928.76 is: 16,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.68 : 26,888.60 = 11,928.76 : x
  2. Step 2: Convert to fraction form
    19,485.68/26,888.60 = 11,928.76/x
  3. Step 3: Cross multiply
    19,485.68x = 26,888.60 × 11,928.76
  4. Step 4: Simplify right side
    19,485.68x = 320,747,656.14
  5. Step 5: Solve for x
    x = 320,747,656.14/19,485.68
  6. Step 6: Final answer
    x = 16,460.69

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Double scale
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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.