Home / 15,623.40-21,559.88-9,576

Finding the Fourth Proportional to 15,623.40, 21,559.88 and 9,576

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Solution

The fourth proportional to 15,623.40, 21,559.88 and 9,576 is: 13,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,623.40 : 21,559.88 = 9,576 : x
  2. Step 2: Convert to fraction form
    15,623.40/21,559.88 = 9,576/x
  3. Step 3: Cross multiply
    15,623.40x = 21,559.88 × 9,576
  4. Step 4: Simplify right side
    15,623.40x = 206,457,410.88
  5. Step 5: Solve for x
    x = 206,457,410.88/15,623.40
  6. Step 6: Final answer
    x = 13,214.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.