Home / 14,142.08-21,204.40-4,781.21

Finding the Fourth Proportional to 14,142.08, 21,204.40 and 4,781.21

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Solution

The fourth proportional to 14,142.08, 21,204.40 and 4,781.21 is: 7,168.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.08 : 21,204.40 = 4,781.21 : x
  2. Step 2: Convert to fraction form
    14,142.08/21,204.40 = 4,781.21/x
  3. Step 3: Cross multiply
    14,142.08x = 21,204.40 × 4,781.21
  4. Step 4: Simplify right side
    14,142.08x = 101,382,689.32
  5. Step 5: Solve for x
    x = 101,382,689.32/14,142.08
  6. Step 6: Final answer
    x = 7,168.87

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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.