Home / 14,004.63-21,013.13-7,429.21

Finding the Fourth Proportional to 14,004.63, 21,013.13 and 7,429.21

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Solution

The fourth proportional to 14,004.63, 21,013.13 and 7,429.21 is: 11,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.63 : 21,013.13 = 7,429.21 : x
  2. Step 2: Convert to fraction form
    14,004.63/21,013.13 = 7,429.21/x
  3. Step 3: Cross multiply
    14,004.63x = 21,013.13 × 7,429.21
  4. Step 4: Simplify right side
    14,004.63x = 156,110,813.32
  5. Step 5: Solve for x
    x = 156,110,813.32/14,004.63
  6. Step 6: Final answer
    x = 11,147.09

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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.