Home / 14,179.05-21,258.15-7,155.64

Finding the Fourth Proportional to 14,179.05, 21,258.15 and 7,155.64

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Solution

The fourth proportional to 14,179.05, 21,258.15 and 7,155.64 is: 10,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.05 : 21,258.15 = 7,155.64 : x
  2. Step 2: Convert to fraction form
    14,179.05/21,258.15 = 7,155.64/x
  3. Step 3: Cross multiply
    14,179.05x = 21,258.15 × 7,155.64
  4. Step 4: Simplify right side
    14,179.05x = 152,115,668.21
  5. Step 5: Solve for x
    x = 152,115,668.21/14,179.05
  6. Step 6: Final answer
    x = 10,728.20

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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.