Home / 12,013.16-18,020.34-4,615.02

Finding the Fourth Proportional to 12,013.16, 18,020.34 and 4,615.02

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Solution

The fourth proportional to 12,013.16, 18,020.34 and 4,615.02 is: 6,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.16 : 18,020.34 = 4,615.02 : x
  2. Step 2: Convert to fraction form
    12,013.16/18,020.34 = 4,615.02/x
  3. Step 3: Cross multiply
    12,013.16x = 18,020.34 × 4,615.02
  4. Step 4: Simplify right side
    12,013.16x = 83,164,229.51
  5. Step 5: Solve for x
    x = 83,164,229.51/12,013.16
  6. Step 6: Final answer
    x = 6,922.76

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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.