Home / 14,309.80-21,464.70-13,507.90

Finding the Fourth Proportional to 14,309.80, 21,464.70 and 13,507.90

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Solution

The fourth proportional to 14,309.80, 21,464.70 and 13,507.90 is: 20,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.80 : 21,464.70 = 13,507.90 : x
  2. Step 2: Convert to fraction form
    14,309.80/21,464.70 = 13,507.90/x
  3. Step 3: Cross multiply
    14,309.80x = 21,464.70 × 13,507.90
  4. Step 4: Simplify right side
    14,309.80x = 289,943,021.13
  5. Step 5: Solve for x
    x = 289,943,021.13/14,309.80
  6. Step 6: Final answer
    x = 20,261.85

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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.