Home / 14,118.80-21,182.43-4,258.40

Finding the Fourth Proportional to 14,118.80, 21,182.43 and 4,258.40

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Solution

The fourth proportional to 14,118.80, 21,182.43 and 4,258.40 is: 6,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.80 : 21,182.43 = 4,258.40 : x
  2. Step 2: Convert to fraction form
    14,118.80/21,182.43 = 4,258.40/x
  3. Step 3: Cross multiply
    14,118.80x = 21,182.43 × 4,258.40
  4. Step 4: Simplify right side
    14,118.80x = 90,203,259.91
  5. Step 5: Solve for x
    x = 90,203,259.91/14,118.80
  6. Step 6: Final answer
    x = 6,388.88

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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.