Home / 14,079.60-21,116.70-4,219.20

Finding the Fourth Proportional to 14,079.60, 21,116.70 and 4,219.20

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Solution

The fourth proportional to 14,079.60, 21,116.70 and 4,219.20 is: 6,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.60 : 21,116.70 = 4,219.20 : x
  2. Step 2: Convert to fraction form
    14,079.60/21,116.70 = 4,219.20/x
  3. Step 3: Cross multiply
    14,079.60x = 21,116.70 × 4,219.20
  4. Step 4: Simplify right side
    14,079.60x = 89,095,580.64
  5. Step 5: Solve for x
    x = 89,095,580.64/14,079.60
  6. Step 6: Final answer
    x = 6,327.99

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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.