Home / 14,515.40-21,740.70-11,210.60

Finding the Fourth Proportional to 14,515.40, 21,740.70 and 11,210.60

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Solution

The fourth proportional to 14,515.40, 21,740.70 and 11,210.60 is: 16,790.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.40 : 21,740.70 = 11,210.60 : x
  2. Step 2: Convert to fraction form
    14,515.40/21,740.70 = 11,210.60/x
  3. Step 3: Cross multiply
    14,515.40x = 21,740.70 × 11,210.60
  4. Step 4: Simplify right side
    14,515.40x = 243,726,291.42
  5. Step 5: Solve for x
    x = 243,726,291.42/14,515.40
  6. Step 6: Final answer
    x = 16,790.88

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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.