Home / 19,718.82-27,210.69-11,219.67

Finding the Fourth Proportional to 19,718.82, 27,210.69 and 11,219.67

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Solution

The fourth proportional to 19,718.82, 27,210.69 and 11,219.67 is: 15,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.82 : 27,210.69 = 11,219.67 : x
  2. Step 2: Convert to fraction form
    19,718.82/27,210.69 = 11,219.67/x
  3. Step 3: Cross multiply
    19,718.82x = 27,210.69 × 11,219.67
  4. Step 4: Simplify right side
    19,718.82x = 305,294,962.27
  5. Step 5: Solve for x
    x = 305,294,962.27/19,718.82
  6. Step 6: Final answer
    x = 15,482.42

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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.