Home / 14,003.16-21,008.85-4,142.70

Finding the Fourth Proportional to 14,003.16, 21,008.85 and 4,142.70

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Solution

The fourth proportional to 14,003.16, 21,008.85 and 4,142.70 is: 6,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.16 : 21,008.85 = 4,142.70 : x
  2. Step 2: Convert to fraction form
    14,003.16/21,008.85 = 4,142.70/x
  3. Step 3: Cross multiply
    14,003.16x = 21,008.85 × 4,142.70
  4. Step 4: Simplify right side
    14,003.16x = 87,033,362.90
  5. Step 5: Solve for x
    x = 87,033,362.90/14,003.16
  6. Step 6: Final answer
    x = 6,215.27

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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.