Home / 10,218.20-14,106.89-6,636.35

Finding the Fourth Proportional to 10,218.20, 14,106.89 and 6,636.35

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Solution

The fourth proportional to 10,218.20, 14,106.89 and 6,636.35 is: 9,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.20 : 14,106.89 = 6,636.35 : x
  2. Step 2: Convert to fraction form
    10,218.20/14,106.89 = 6,636.35/x
  3. Step 3: Cross multiply
    10,218.20x = 14,106.89 × 6,636.35
  4. Step 4: Simplify right side
    10,218.20x = 93,618,311.31
  5. Step 5: Solve for x
    x = 93,618,311.31/10,218.20
  6. Step 6: Final answer
    x = 9,161.92

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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.