Home / 14,179.12-21,271.84-4,319.16

Finding the Fourth Proportional to 14,179.12, 21,271.84 and 4,319.16

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Solution

The fourth proportional to 14,179.12, 21,271.84 and 4,319.16 is: 6,479.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.12 : 21,271.84 = 4,319.16 : x
  2. Step 2: Convert to fraction form
    14,179.12/21,271.84 = 4,319.16/x
  3. Step 3: Cross multiply
    14,179.12x = 21,271.84 × 4,319.16
  4. Step 4: Simplify right side
    14,179.12x = 91,876,480.45
  5. Step 5: Solve for x
    x = 91,876,480.45/14,179.12
  6. Step 6: Final answer
    x = 6,479.70

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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.