Home / 14,149.10-21,210.45-4,782.56

Finding the Fourth Proportional to 14,149.10, 21,210.45 and 4,782.56

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Solution

The fourth proportional to 14,149.10, 21,210.45 and 4,782.56 is: 7,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.10 : 21,210.45 = 4,782.56 : x
  2. Step 2: Convert to fraction form
    14,149.10/21,210.45 = 4,782.56/x
  3. Step 3: Cross multiply
    14,149.10x = 21,210.45 × 4,782.56
  4. Step 4: Simplify right side
    14,149.10x = 101,440,302.78
  5. Step 5: Solve for x
    x = 101,440,302.78/14,149.10
  6. Step 6: Final answer
    x = 7,169.38

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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.