Home / 14,127.20-21,148.68-8,563.76

Finding the Fourth Proportional to 14,127.20, 21,148.68 and 8,563.76

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Solution

The fourth proportional to 14,127.20, 21,148.68 and 8,563.76 is: 12,820.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.20 : 21,148.68 = 8,563.76 : x
  2. Step 2: Convert to fraction form
    14,127.20/21,148.68 = 8,563.76/x
  3. Step 3: Cross multiply
    14,127.20x = 21,148.68 × 8,563.76
  4. Step 4: Simplify right side
    14,127.20x = 181,112,219.84
  5. Step 5: Solve for x
    x = 181,112,219.84/14,127.20
  6. Step 6: Final answer
    x = 12,820.11

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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.