Home / 14,443.72-21,651.40-7,427.09

Finding the Fourth Proportional to 14,443.72, 21,651.40 and 7,427.09

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Solution

The fourth proportional to 14,443.72, 21,651.40 and 7,427.09 is: 11,133.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,443.72 : 21,651.40 = 7,427.09 : x
  2. Step 2: Convert to fraction form
    14,443.72/21,651.40 = 7,427.09/x
  3. Step 3: Cross multiply
    14,443.72x = 21,651.40 × 7,427.09
  4. Step 4: Simplify right side
    14,443.72x = 160,806,959.84
  5. Step 5: Solve for x
    x = 160,806,959.84/14,443.72
  6. Step 6: Final answer
    x = 11,133.35

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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.