Home / 19,386.80-26,750.56-11,427.92

Finding the Fourth Proportional to 19,386.80, 26,750.56 and 11,427.92

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Solution

The fourth proportional to 19,386.80, 26,750.56 and 11,427.92 is: 15,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.80 : 26,750.56 = 11,427.92 : x
  2. Step 2: Convert to fraction form
    19,386.80/26,750.56 = 11,427.92/x
  3. Step 3: Cross multiply
    19,386.80x = 26,750.56 × 11,427.92
  4. Step 4: Simplify right side
    19,386.80x = 305,703,259.64
  5. Step 5: Solve for x
    x = 305,703,259.64/19,386.80
  6. Step 6: Final answer
    x = 15,768.63

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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.