Home / 12,088.38-18,119.46-4,690.65

Finding the Fourth Proportional to 12,088.38, 18,119.46 and 4,690.65

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Solution

The fourth proportional to 12,088.38, 18,119.46 and 4,690.65 is: 7,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.38 : 18,119.46 = 4,690.65 : x
  2. Step 2: Convert to fraction form
    12,088.38/18,119.46 = 4,690.65/x
  3. Step 3: Cross multiply
    12,088.38x = 18,119.46 × 4,690.65
  4. Step 4: Simplify right side
    12,088.38x = 84,992,045.05
  5. Step 5: Solve for x
    x = 84,992,045.05/12,088.38
  6. Step 6: Final answer
    x = 7,030.89

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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.