Home / 10,855.08-14,980.10-6,379.02

Finding the Fourth Proportional to 10,855.08, 14,980.10 and 6,379.02

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Solution

The fourth proportional to 10,855.08, 14,980.10 and 6,379.02 is: 8,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.08 : 14,980.10 = 6,379.02 : x
  2. Step 2: Convert to fraction form
    10,855.08/14,980.10 = 6,379.02/x
  3. Step 3: Cross multiply
    10,855.08x = 14,980.10 × 6,379.02
  4. Step 4: Simplify right side
    10,855.08x = 95,558,325.61
  5. Step 5: Solve for x
    x = 95,558,325.61/10,855.08
  6. Step 6: Final answer
    x = 8,803.10

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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.