Home / 14,888.81-20,546.89-8,174.55

Finding the Fourth Proportional to 14,888.81, 20,546.89 and 8,174.55

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Solution

The fourth proportional to 14,888.81, 20,546.89 and 8,174.55 is: 11,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,888.81 : 20,546.89 = 8,174.55 : x
  2. Step 2: Convert to fraction form
    14,888.81/20,546.89 = 8,174.55/x
  3. Step 3: Cross multiply
    14,888.81x = 20,546.89 × 8,174.55
  4. Step 4: Simplify right side
    14,888.81x = 167,961,579.65
  5. Step 5: Solve for x
    x = 167,961,579.65/14,888.81
  6. Step 6: Final answer
    x = 11,281.06

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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.