Home / 14,777.10-20,392.02-8,489.34

Finding the Fourth Proportional to 14,777.10, 20,392.02 and 8,489.34

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Solution

The fourth proportional to 14,777.10, 20,392.02 and 8,489.34 is: 11,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,777.10 : 20,392.02 = 8,489.34 : x
  2. Step 2: Convert to fraction form
    14,777.10/20,392.02 = 8,489.34/x
  3. Step 3: Cross multiply
    14,777.10x = 20,392.02 × 8,489.34
  4. Step 4: Simplify right side
    14,777.10x = 173,114,791.07
  5. Step 5: Solve for x
    x = 173,114,791.07/14,777.10
  6. Step 6: Final answer
    x = 11,715.07

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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.