Home / 14,141.08-21,208.12-4,780.89

Finding the Fourth Proportional to 14,141.08, 21,208.12 and 4,780.89

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Solution

The fourth proportional to 14,141.08, 21,208.12 and 4,780.89 is: 7,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.08 : 21,208.12 = 4,780.89 : x
  2. Step 2: Convert to fraction form
    14,141.08/21,208.12 = 4,780.89/x
  3. Step 3: Cross multiply
    14,141.08x = 21,208.12 × 4,780.89
  4. Step 4: Simplify right side
    14,141.08x = 101,393,688.83
  5. Step 5: Solve for x
    x = 101,393,688.83/14,141.08
  6. Step 6: Final answer
    x = 7,170.15

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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.