Home / 14,577.88-21,870.48-4,189.72

Finding the Fourth Proportional to 14,577.88, 21,870.48 and 4,189.72

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Solution

The fourth proportional to 14,577.88, 21,870.48 and 4,189.72 is: 6,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.88 : 21,870.48 = 4,189.72 : x
  2. Step 2: Convert to fraction form
    14,577.88/21,870.48 = 4,189.72/x
  3. Step 3: Cross multiply
    14,577.88x = 21,870.48 × 4,189.72
  4. Step 4: Simplify right side
    14,577.88x = 91,631,187.47
  5. Step 5: Solve for x
    x = 91,631,187.47/14,577.88
  6. Step 6: Final answer
    x = 6,285.63

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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.