Home / 19,386.75-26,749.56-11,426.07

Finding the Fourth Proportional to 19,386.75, 26,749.56 and 11,426.07

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Solution

The fourth proportional to 19,386.75, 26,749.56 and 11,426.07 is: 15,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.75 : 26,749.56 = 11,426.07 : x
  2. Step 2: Convert to fraction form
    19,386.75/26,749.56 = 11,426.07/x
  3. Step 3: Cross multiply
    19,386.75x = 26,749.56 × 11,426.07
  4. Step 4: Simplify right side
    19,386.75x = 305,642,345.03
  5. Step 5: Solve for x
    x = 305,642,345.03/19,386.75
  6. Step 6: Final answer
    x = 15,765.53

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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.