Home / 14,739.03-20,339.51-8,451

Finding the Fourth Proportional to 14,739.03, 20,339.51 and 8,451

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Solution

The fourth proportional to 14,739.03, 20,339.51 and 8,451 is: 11,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,739.03 : 20,339.51 = 8,451 : x
  2. Step 2: Convert to fraction form
    14,739.03/20,339.51 = 8,451/x
  3. Step 3: Cross multiply
    14,739.03x = 20,339.51 × 8,451
  4. Step 4: Simplify right side
    14,739.03x = 171,889,156.76
  5. Step 5: Solve for x
    x = 171,889,156.76/14,739.03
  6. Step 6: Final answer
    x = 11,662.18

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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.