Home / 14,717.13-20,309.84-8,429.50

Finding the Fourth Proportional to 14,717.13, 20,309.84 and 8,429.50

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Solution

The fourth proportional to 14,717.13, 20,309.84 and 8,429.50 is: 11,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,717.13 : 20,309.84 = 8,429.50 : x
  2. Step 2: Convert to fraction form
    14,717.13/20,309.84 = 8,429.50/x
  3. Step 3: Cross multiply
    14,717.13x = 20,309.84 × 8,429.50
  4. Step 4: Simplify right side
    14,717.13x = 171,201,796.28
  5. Step 5: Solve for x
    x = 171,201,796.28/14,717.13
  6. Step 6: Final answer
    x = 11,632.82

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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.