Home / 15,610-21,539.24-8,895.72

Finding the Fourth Proportional to 15,610, 21,539.24 and 8,895.72

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Solution

The fourth proportional to 15,610, 21,539.24 and 8,895.72 is: 12,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,610 : 21,539.24 = 8,895.72 : x
  2. Step 2: Convert to fraction form
    15,610/21,539.24 = 8,895.72/x
  3. Step 3: Cross multiply
    15,610x = 21,539.24 × 8,895.72
  4. Step 4: Simplify right side
    15,610x = 191,607,048.05
  5. Step 5: Solve for x
    x = 191,607,048.05/15,610
  6. Step 6: Final answer
    x = 12,274.63

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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.