Home / 26,531.04-39,782.87-7,808.64

Finding the Fourth Proportional to 26,531.04, 39,782.87 and 7,808.64

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Solution

The fourth proportional to 26,531.04, 39,782.87 and 7,808.64 is: 11,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.04 : 39,782.87 = 7,808.64 : x
  2. Step 2: Convert to fraction form
    26,531.04/39,782.87 = 7,808.64/x
  3. Step 3: Cross multiply
    26,531.04x = 39,782.87 × 7,808.64
  4. Step 4: Simplify right side
    26,531.04x = 310,650,070.95
  5. Step 5: Solve for x
    x = 310,650,070.95/26,531.04
  6. Step 6: Final answer
    x = 11,708.93

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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.