Home / 7,785.51-11,684.49-4,089.93

Finding the Fourth Proportional to 7,785.51, 11,684.49 and 4,089.93

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Solution

The fourth proportional to 7,785.51, 11,684.49 and 4,089.93 is: 6,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.51 : 11,684.49 = 4,089.93 : x
  2. Step 2: Convert to fraction form
    7,785.51/11,684.49 = 4,089.93/x
  3. Step 3: Cross multiply
    7,785.51x = 11,684.49 × 4,089.93
  4. Step 4: Simplify right side
    7,785.51x = 47,788,746.19
  5. Step 5: Solve for x
    x = 47,788,746.19/7,785.51
  6. Step 6: Final answer
    x = 6,138.17

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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.