Home / 10,421.28-14,382.96-6,231.96

Finding the Fourth Proportional to 10,421.28, 14,382.96 and 6,231.96

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Solution

The fourth proportional to 10,421.28, 14,382.96 and 6,231.96 is: 8,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.28 : 14,382.96 = 6,231.96 : x
  2. Step 2: Convert to fraction form
    10,421.28/14,382.96 = 6,231.96/x
  3. Step 3: Cross multiply
    10,421.28x = 14,382.96 × 6,231.96
  4. Step 4: Simplify right side
    10,421.28x = 89,634,031.40
  5. Step 5: Solve for x
    x = 89,634,031.40/10,421.28
  6. Step 6: Final answer
    x = 8,601.06

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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.