Home / 14,281.66-21,431.36-6,886.88

Finding the Fourth Proportional to 14,281.66, 21,431.36 and 6,886.88

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Solution

The fourth proportional to 14,281.66, 21,431.36 and 6,886.88 is: 10,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.66 : 21,431.36 = 6,886.88 : x
  2. Step 2: Convert to fraction form
    14,281.66/21,431.36 = 6,886.88/x
  3. Step 3: Cross multiply
    14,281.66x = 21,431.36 × 6,886.88
  4. Step 4: Simplify right side
    14,281.66x = 147,595,204.56
  5. Step 5: Solve for x
    x = 147,595,204.56/14,281.66
  6. Step 6: Final answer
    x = 10,334.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.