Home / 14,459.80-21,705.90-11,187.40

Finding the Fourth Proportional to 14,459.80, 21,705.90 and 11,187.40

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Solution

The fourth proportional to 14,459.80, 21,705.90 and 11,187.40 is: 16,793.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.80 : 21,705.90 = 11,187.40 : x
  2. Step 2: Convert to fraction form
    14,459.80/21,705.90 = 11,187.40/x
  3. Step 3: Cross multiply
    14,459.80x = 21,705.90 × 11,187.40
  4. Step 4: Simplify right side
    14,459.80x = 242,832,585.66
  5. Step 5: Solve for x
    x = 242,832,585.66/14,459.80
  6. Step 6: Final answer
    x = 16,793.63

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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.