Home / 14,155.12-21,233.68-4,295.20

Finding the Fourth Proportional to 14,155.12, 21,233.68 and 4,295.20

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Solution

The fourth proportional to 14,155.12, 21,233.68 and 4,295.20 is: 6,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.12 : 21,233.68 = 4,295.20 : x
  2. Step 2: Convert to fraction form
    14,155.12/21,233.68 = 4,295.20/x
  3. Step 3: Cross multiply
    14,155.12x = 21,233.68 × 4,295.20
  4. Step 4: Simplify right side
    14,155.12x = 91,202,902.34
  5. Step 5: Solve for x
    x = 91,202,902.34/14,155.12
  6. Step 6: Final answer
    x = 6,443.10

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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.