Home / 14,020.30-21,013.80-7,443.10

Finding the Fourth Proportional to 14,020.30, 21,013.80 and 7,443.10

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Solution

The fourth proportional to 14,020.30, 21,013.80 and 7,443.10 is: 11,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.30 : 21,013.80 = 7,443.10 : x
  2. Step 2: Convert to fraction form
    14,020.30/21,013.80 = 7,443.10/x
  3. Step 3: Cross multiply
    14,020.30x = 21,013.80 × 7,443.10
  4. Step 4: Simplify right side
    14,020.30x = 156,407,814.78
  5. Step 5: Solve for x
    x = 156,407,814.78/14,020.30
  6. Step 6: Final answer
    x = 11,155.81

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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.