Home / 10,855.96-14,981.34-6,139.96

Finding the Fourth Proportional to 10,855.96, 14,981.34 and 6,139.96

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Solution

The fourth proportional to 10,855.96, 14,981.34 and 6,139.96 is: 8,473.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.96 : 14,981.34 = 6,139.96 : x
  2. Step 2: Convert to fraction form
    10,855.96/14,981.34 = 6,139.96/x
  3. Step 3: Cross multiply
    10,855.96x = 14,981.34 × 6,139.96
  4. Step 4: Simplify right side
    10,855.96x = 91,984,828.35
  5. Step 5: Solve for x
    x = 91,984,828.35/10,855.96
  6. Step 6: Final answer
    x = 8,473.21

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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.