Home / 14,412.83-21,475.96-12,840.75

Finding the Fourth Proportional to 14,412.83, 21,475.96 and 12,840.75

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Solution

The fourth proportional to 14,412.83, 21,475.96 and 12,840.75 is: 19,133.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.83 : 21,475.96 = 12,840.75 : x
  2. Step 2: Convert to fraction form
    14,412.83/21,475.96 = 12,840.75/x
  3. Step 3: Cross multiply
    14,412.83x = 21,475.96 × 12,840.75
  4. Step 4: Simplify right side
    14,412.83x = 275,767,401.27
  5. Step 5: Solve for x
    x = 275,767,401.27/14,412.83
  6. Step 6: Final answer
    x = 19,133.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.