Home / 14,140.02-21,212.26-4,278.06

Finding the Fourth Proportional to 14,140.02, 21,212.26 and 4,278.06

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Solution

The fourth proportional to 14,140.02, 21,212.26 and 4,278.06 is: 6,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.02 : 21,212.26 = 4,278.06 : x
  2. Step 2: Convert to fraction form
    14,140.02/21,212.26 = 4,278.06/x
  3. Step 3: Cross multiply
    14,140.02x = 21,212.26 × 4,278.06
  4. Step 4: Simplify right side
    14,140.02x = 90,747,321.02
  5. Step 5: Solve for x
    x = 90,747,321.02/14,140.02
  6. Step 6: Final answer
    x = 6,417.76

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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.