Home / 13,895.65-19,176.80-8,229.20

Finding the Fourth Proportional to 13,895.65, 19,176.80 and 8,229.20

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Solution

The fourth proportional to 13,895.65, 19,176.80 and 8,229.20 is: 11,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.65 : 19,176.80 = 8,229.20 : x
  2. Step 2: Convert to fraction form
    13,895.65/19,176.80 = 8,229.20/x
  3. Step 3: Cross multiply
    13,895.65x = 19,176.80 × 8,229.20
  4. Step 4: Simplify right side
    13,895.65x = 157,809,631.82
  5. Step 5: Solve for x
    x = 157,809,631.82/13,895.65
  6. Step 6: Final answer
    x = 11,356.76

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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.