Home / 14,071.76-21,107.69-5,642.09

Finding the Fourth Proportional to 14,071.76, 21,107.69 and 5,642.09

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Solution

The fourth proportional to 14,071.76, 21,107.69 and 5,642.09 is: 8,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.76 : 21,107.69 = 5,642.09 : x
  2. Step 2: Convert to fraction form
    14,071.76/21,107.69 = 5,642.09/x
  3. Step 3: Cross multiply
    14,071.76x = 21,107.69 × 5,642.09
  4. Step 4: Simplify right side
    14,071.76x = 119,091,453.23
  5. Step 5: Solve for x
    x = 119,091,453.23/14,071.76
  6. Step 6: Final answer
    x = 8,463.15

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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.