Home / 14,298.12-21,453.30-7,728.89

Finding the Fourth Proportional to 14,298.12, 21,453.30 and 7,728.89

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Solution

The fourth proportional to 14,298.12, 21,453.30 and 7,728.89 is: 11,596.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.12 : 21,453.30 = 7,728.89 : x
  2. Step 2: Convert to fraction form
    14,298.12/21,453.30 = 7,728.89/x
  3. Step 3: Cross multiply
    14,298.12x = 21,453.30 × 7,728.89
  4. Step 4: Simplify right side
    14,298.12x = 165,810,088.57
  5. Step 5: Solve for x
    x = 165,810,088.57/14,298.12
  6. Step 6: Final answer
    x = 11,596.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.