Home / 14,820.72-20,454.36-8,534.31

Finding the Fourth Proportional to 14,820.72, 20,454.36 and 8,534.31

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Solution

The fourth proportional to 14,820.72, 20,454.36 and 8,534.31 is: 11,778.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.72 : 20,454.36 = 8,534.31 : x
  2. Step 2: Convert to fraction form
    14,820.72/20,454.36 = 8,534.31/x
  3. Step 3: Cross multiply
    14,820.72x = 20,454.36 × 8,534.31
  4. Step 4: Simplify right side
    14,820.72x = 174,563,849.09
  5. Step 5: Solve for x
    x = 174,563,849.09/14,820.72
  6. Step 6: Final answer
    x = 11,778.36

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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.