Home / 14,155.22-21,212.69-10,428.14

Finding the Fourth Proportional to 14,155.22, 21,212.69 and 10,428.14

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Solution

The fourth proportional to 14,155.22, 21,212.69 and 10,428.14 is: 15,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.22 : 21,212.69 = 10,428.14 : x
  2. Step 2: Convert to fraction form
    14,155.22/21,212.69 = 10,428.14/x
  3. Step 3: Cross multiply
    14,155.22x = 21,212.69 × 10,428.14
  4. Step 4: Simplify right side
    14,155.22x = 221,208,901.99
  5. Step 5: Solve for x
    x = 221,208,901.99/14,155.22
  6. Step 6: Final answer
    x = 15,627.37

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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.