Home / 14,079.56-21,122.37-4,219.70

Finding the Fourth Proportional to 14,079.56, 21,122.37 and 4,219.70

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Solution

The fourth proportional to 14,079.56, 21,122.37 and 4,219.70 is: 6,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.56 : 21,122.37 = 4,219.70 : x
  2. Step 2: Convert to fraction form
    14,079.56/21,122.37 = 4,219.70/x
  3. Step 3: Cross multiply
    14,079.56x = 21,122.37 × 4,219.70
  4. Step 4: Simplify right side
    14,079.56x = 89,129,959.08
  5. Step 5: Solve for x
    x = 89,129,959.08/14,079.56
  6. Step 6: Final answer
    x = 6,330.45

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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.