Home / 14,079.54-21,118.08-4,221.06

Finding the Fourth Proportional to 14,079.54, 21,118.08 and 4,221.06

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Solution

The fourth proportional to 14,079.54, 21,118.08 and 4,221.06 is: 6,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.54 : 21,118.08 = 4,221.06 : x
  2. Step 2: Convert to fraction form
    14,079.54/21,118.08 = 4,221.06/x
  3. Step 3: Cross multiply
    14,079.54x = 21,118.08 × 4,221.06
  4. Step 4: Simplify right side
    14,079.54x = 89,140,682.76
  5. Step 5: Solve for x
    x = 89,140,682.76/14,079.54
  6. Step 6: Final answer
    x = 6,331.22

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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.