Home / 19,698.75-27,184.28-11,315.25

Finding the Fourth Proportional to 19,698.75, 27,184.28 and 11,315.25

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Solution

The fourth proportional to 19,698.75, 27,184.28 and 11,315.25 is: 15,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.75 : 27,184.28 = 11,315.25 : x
  2. Step 2: Convert to fraction form
    19,698.75/27,184.28 = 11,315.25/x
  3. Step 3: Cross multiply
    19,698.75x = 27,184.28 × 11,315.25
  4. Step 4: Simplify right side
    19,698.75x = 307,596,867.69
  5. Step 5: Solve for x
    x = 307,596,867.69/19,698.75
  6. Step 6: Final answer
    x = 15,615.05

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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.