Home / 11,979.51-17,970.48-4,590.15

Finding the Fourth Proportional to 11,979.51, 17,970.48 and 4,590.15

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Solution

The fourth proportional to 11,979.51, 17,970.48 and 4,590.15 is: 6,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.51 : 17,970.48 = 4,590.15 : x
  2. Step 2: Convert to fraction form
    11,979.51/17,970.48 = 4,590.15/x
  3. Step 3: Cross multiply
    11,979.51x = 17,970.48 × 4,590.15
  4. Step 4: Simplify right side
    11,979.51x = 82,487,198.77
  5. Step 5: Solve for x
    x = 82,487,198.77/11,979.51
  6. Step 6: Final answer
    x = 6,885.69

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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.