Home / 14,488.32-21,728.16-4,627.20

Finding the Fourth Proportional to 14,488.32, 21,728.16 and 4,627.20

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Solution

The fourth proportional to 14,488.32, 21,728.16 and 4,627.20 is: 6,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,488.32 : 21,728.16 = 4,627.20 : x
  2. Step 2: Convert to fraction form
    14,488.32/21,728.16 = 4,627.20/x
  3. Step 3: Cross multiply
    14,488.32x = 21,728.16 × 4,627.20
  4. Step 4: Simplify right side
    14,488.32x = 100,540,541.95
  5. Step 5: Solve for x
    x = 100,540,541.95/14,488.32
  6. Step 6: Final answer
    x = 6,939.42

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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.