Home / 10,406.82-14,359.74-6,429.24

Finding the Fourth Proportional to 10,406.82, 14,359.74 and 6,429.24

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Solution

The fourth proportional to 10,406.82, 14,359.74 and 6,429.24 is: 8,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,406.82 : 14,359.74 = 6,429.24 : x
  2. Step 2: Convert to fraction form
    10,406.82/14,359.74 = 6,429.24/x
  3. Step 3: Cross multiply
    10,406.82x = 14,359.74 × 6,429.24
  4. Step 4: Simplify right side
    10,406.82x = 92,322,214.80
  5. Step 5: Solve for x
    x = 92,322,214.80/10,406.82
  6. Step 6: Final answer
    x = 8,871.32

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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.