Home / 12,343.40-18,516.70-6,106.60

Finding the Fourth Proportional to 12,343.40, 18,516.70 and 6,106.60

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Solution

The fourth proportional to 12,343.40, 18,516.70 and 6,106.60 is: 9,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.40 : 18,516.70 = 6,106.60 : x
  2. Step 2: Convert to fraction form
    12,343.40/18,516.70 = 6,106.60/x
  3. Step 3: Cross multiply
    12,343.40x = 18,516.70 × 6,106.60
  4. Step 4: Simplify right side
    12,343.40x = 113,074,080.22
  5. Step 5: Solve for x
    x = 113,074,080.22/12,343.40
  6. Step 6: Final answer
    x = 9,160.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.