Home / 8,645.20-11,929.05-4,868.17

Finding the Fourth Proportional to 8,645.20, 11,929.05 and 4,868.17

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Solution

The fourth proportional to 8,645.20, 11,929.05 and 4,868.17 is: 6,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.20 : 11,929.05 = 4,868.17 : x
  2. Step 2: Convert to fraction form
    8,645.20/11,929.05 = 4,868.17/x
  3. Step 3: Cross multiply
    8,645.20x = 11,929.05 × 4,868.17
  4. Step 4: Simplify right side
    8,645.20x = 58,072,643.34
  5. Step 5: Solve for x
    x = 58,072,643.34/8,645.20
  6. Step 6: Final answer
    x = 6,717.33

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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.