Home / 11,315.61-16,958.02-8,539.96

Finding the Fourth Proportional to 11,315.61, 16,958.02 and 8,539.96

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Solution

The fourth proportional to 11,315.61, 16,958.02 and 8,539.96 is: 12,798.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.61 : 16,958.02 = 8,539.96 : x
  2. Step 2: Convert to fraction form
    11,315.61/16,958.02 = 8,539.96/x
  3. Step 3: Cross multiply
    11,315.61x = 16,958.02 × 8,539.96
  4. Step 4: Simplify right side
    11,315.61x = 144,820,812.48
  5. Step 5: Solve for x
    x = 144,820,812.48/11,315.61
  6. Step 6: Final answer
    x = 12,798.32

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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.