Home / 12,017.38-18,017.58-4,615.60

Finding the Fourth Proportional to 12,017.38, 18,017.58 and 4,615.60

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Solution

The fourth proportional to 12,017.38, 18,017.58 and 4,615.60 is: 6,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.38 : 18,017.58 = 4,615.60 : x
  2. Step 2: Convert to fraction form
    12,017.38/18,017.58 = 4,615.60/x
  3. Step 3: Cross multiply
    12,017.38x = 18,017.58 × 4,615.60
  4. Step 4: Simplify right side
    12,017.38x = 83,161,942.25
  5. Step 5: Solve for x
    x = 83,161,942.25/12,017.38
  6. Step 6: Final answer
    x = 6,920.14

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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.