Home / 14,515.30-21,740.55-11,202.40

Finding the Fourth Proportional to 14,515.30, 21,740.55 and 11,202.40

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Solution

The fourth proportional to 14,515.30, 21,740.55 and 11,202.40 is: 16,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.30 : 21,740.55 = 11,202.40 : x
  2. Step 2: Convert to fraction form
    14,515.30/21,740.55 = 11,202.40/x
  3. Step 3: Cross multiply
    14,515.30x = 21,740.55 × 11,202.40
  4. Step 4: Simplify right side
    14,515.30x = 243,546,337.32
  5. Step 5: Solve for x
    x = 243,546,337.32/14,515.30
  6. Step 6: Final answer
    x = 16,778.59

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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.