Home / 8,643.42-11,929.77-5,108.58

Finding the Fourth Proportional to 8,643.42, 11,929.77 and 5,108.58

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Solution

The fourth proportional to 8,643.42, 11,929.77 and 5,108.58 is: 7,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.42 : 11,929.77 = 5,108.58 : x
  2. Step 2: Convert to fraction form
    8,643.42/11,929.77 = 5,108.58/x
  3. Step 3: Cross multiply
    8,643.42x = 11,929.77 × 5,108.58
  4. Step 4: Simplify right side
    8,643.42x = 60,944,184.43
  5. Step 5: Solve for x
    x = 60,944,184.43/8,643.42
  6. Step 6: Final answer
    x = 7,050.93

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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.