Home / 10,064.21-13,890.58-6,427.92

Finding the Fourth Proportional to 10,064.21, 13,890.58 and 6,427.92

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Solution

The fourth proportional to 10,064.21, 13,890.58 and 6,427.92 is: 8,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,064.21 : 13,890.58 = 6,427.92 : x
  2. Step 2: Convert to fraction form
    10,064.21/13,890.58 = 6,427.92/x
  3. Step 3: Cross multiply
    10,064.21x = 13,890.58 × 6,427.92
  4. Step 4: Simplify right side
    10,064.21x = 89,287,536.99
  5. Step 5: Solve for x
    x = 89,287,536.99/10,064.21
  6. Step 6: Final answer
    x = 8,871.79

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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.