Home / 14,775.06-20,379.16-8,802.12

Finding the Fourth Proportional to 14,775.06, 20,379.16 and 8,802.12

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Solution

The fourth proportional to 14,775.06, 20,379.16 and 8,802.12 is: 12,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775.06 : 20,379.16 = 8,802.12 : x
  2. Step 2: Convert to fraction form
    14,775.06/20,379.16 = 8,802.12/x
  3. Step 3: Cross multiply
    14,775.06x = 20,379.16 × 8,802.12
  4. Step 4: Simplify right side
    14,775.06x = 179,379,811.82
  5. Step 5: Solve for x
    x = 179,379,811.82/14,775.06
  6. Step 6: Final answer
    x = 12,140.72

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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.