Home / 12,303.57-16,980.36-6,999.18

Finding the Fourth Proportional to 12,303.57, 16,980.36 and 6,999.18

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Solution

The fourth proportional to 12,303.57, 16,980.36 and 6,999.18 is: 9,659.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.57 : 16,980.36 = 6,999.18 : x
  2. Step 2: Convert to fraction form
    12,303.57/16,980.36 = 6,999.18/x
  3. Step 3: Cross multiply
    12,303.57x = 16,980.36 × 6,999.18
  4. Step 4: Simplify right side
    12,303.57x = 118,848,596.10
  5. Step 5: Solve for x
    x = 118,848,596.10/12,303.57
  6. Step 6: Final answer
    x = 9,659.68

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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.