Home / 14,274.02-21,387.99-8,790.50

Finding the Fourth Proportional to 14,274.02, 21,387.99 and 8,790.50

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Solution

The fourth proportional to 14,274.02, 21,387.99 and 8,790.50 is: 13,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.02 : 21,387.99 = 8,790.50 : x
  2. Step 2: Convert to fraction form
    14,274.02/21,387.99 = 8,790.50/x
  3. Step 3: Cross multiply
    14,274.02x = 21,387.99 × 8,790.50
  4. Step 4: Simplify right side
    14,274.02x = 188,011,126.10
  5. Step 5: Solve for x
    x = 188,011,126.10/14,274.02
  6. Step 6: Final answer
    x = 13,171.56

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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.