Home / 14,997.20-20,697.88-9,031.84

Finding the Fourth Proportional to 14,997.20, 20,697.88 and 9,031.84

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Solution

The fourth proportional to 14,997.20, 20,697.88 and 9,031.84 is: 12,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997.20 : 20,697.88 = 9,031.84 : x
  2. Step 2: Convert to fraction form
    14,997.20/20,697.88 = 9,031.84/x
  3. Step 3: Cross multiply
    14,997.20x = 20,697.88 × 9,031.84
  4. Step 4: Simplify right side
    14,997.20x = 186,939,940.50
  5. Step 5: Solve for x
    x = 186,939,940.50/14,997.20
  6. Step 6: Final answer
    x = 12,464.99

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1.5x scale

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.