Home / 14,219.05-21,328.57-7,636.18

Finding the Fourth Proportional to 14,219.05, 21,328.57 and 7,636.18

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Solution

The fourth proportional to 14,219.05, 21,328.57 and 7,636.18 is: 11,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.05 : 21,328.57 = 7,636.18 : x
  2. Step 2: Convert to fraction form
    14,219.05/21,328.57 = 7,636.18/x
  3. Step 3: Cross multiply
    14,219.05x = 21,328.57 × 7,636.18
  4. Step 4: Simplify right side
    14,219.05x = 162,868,799.66
  5. Step 5: Solve for x
    x = 162,868,799.66/14,219.05
  6. Step 6: Final answer
    x = 11,454.27

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1.5x scale

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.