Home / 14,178.09-21,258.01-6,782.38

Finding the Fourth Proportional to 14,178.09, 21,258.01 and 6,782.38

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Solution

The fourth proportional to 14,178.09, 21,258.01 and 6,782.38 is: 10,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.09 : 21,258.01 = 6,782.38 : x
  2. Step 2: Convert to fraction form
    14,178.09/21,258.01 = 6,782.38/x
  3. Step 3: Cross multiply
    14,178.09x = 21,258.01 × 6,782.38
  4. Step 4: Simplify right side
    14,178.09x = 144,179,901.86
  5. Step 5: Solve for x
    x = 144,179,901.86/14,178.09
  6. Step 6: Final answer
    x = 10,169.20

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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.