Home / 14,605.32-20,150.70-8,639.04

Finding the Fourth Proportional to 14,605.32, 20,150.70 and 8,639.04

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Solution

The fourth proportional to 14,605.32, 20,150.70 and 8,639.04 is: 11,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.32 : 20,150.70 = 8,639.04 : x
  2. Step 2: Convert to fraction form
    14,605.32/20,150.70 = 8,639.04/x
  3. Step 3: Cross multiply
    14,605.32x = 20,150.70 × 8,639.04
  4. Step 4: Simplify right side
    14,605.32x = 174,082,703.33
  5. Step 5: Solve for x
    x = 174,082,703.33/14,605.32
  6. Step 6: Final answer
    x = 11,919.13

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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.