Home / 14,141.63-21,212.51-4,781.72

Finding the Fourth Proportional to 14,141.63, 21,212.51 and 4,781.72

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Solution

The fourth proportional to 14,141.63, 21,212.51 and 4,781.72 is: 7,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.63 : 21,212.51 = 4,781.72 : x
  2. Step 2: Convert to fraction form
    14,141.63/21,212.51 = 4,781.72/x
  3. Step 3: Cross multiply
    14,141.63x = 21,212.51 × 4,781.72
  4. Step 4: Simplify right side
    14,141.63x = 101,432,312.44
  5. Step 5: Solve for x
    x = 101,432,312.44/14,141.63
  6. Step 6: Final answer
    x = 7,172.60

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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.