Home / 12,285.03-16,953.80-6,980.75

Finding the Fourth Proportional to 12,285.03, 16,953.80 and 6,980.75

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Solution

The fourth proportional to 12,285.03, 16,953.80 and 6,980.75 is: 9,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.03 : 16,953.80 = 6,980.75 : x
  2. Step 2: Convert to fraction form
    12,285.03/16,953.80 = 6,980.75/x
  3. Step 3: Cross multiply
    12,285.03x = 16,953.80 × 6,980.75
  4. Step 4: Simplify right side
    12,285.03x = 118,350,119.68
  5. Step 5: Solve for x
    x = 118,350,119.68/12,285.03
  6. Step 6: Final answer
    x = 9,633.69

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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.