Home / 7,881.51-10,874.55-5,192.43

Finding the Fourth Proportional to 7,881.51, 10,874.55 and 5,192.43

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Solution

The fourth proportional to 7,881.51, 10,874.55 and 5,192.43 is: 7,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.51 : 10,874.55 = 5,192.43 : x
  2. Step 2: Convert to fraction form
    7,881.51/10,874.55 = 5,192.43/x
  3. Step 3: Cross multiply
    7,881.51x = 10,874.55 × 5,192.43
  4. Step 4: Simplify right side
    7,881.51x = 56,465,339.66
  5. Step 5: Solve for x
    x = 56,465,339.66/7,881.51
  6. Step 6: Final answer
    x = 7,164.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.