Home / 14,144.12-21,210.70-4,781.64

Finding the Fourth Proportional to 14,144.12, 21,210.70 and 4,781.64

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Solution

The fourth proportional to 14,144.12, 21,210.70 and 4,781.64 is: 7,170.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.12 : 21,210.70 = 4,781.64 : x
  2. Step 2: Convert to fraction form
    14,144.12/21,210.70 = 4,781.64/x
  3. Step 3: Cross multiply
    14,144.12x = 21,210.70 × 4,781.64
  4. Step 4: Simplify right side
    14,144.12x = 101,421,931.55
  5. Step 5: Solve for x
    x = 101,421,931.55/14,144.12
  6. Step 6: Final answer
    x = 7,170.61

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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.