Home / 12,053.40-18,101.70-8,770.20

Finding the Fourth Proportional to 12,053.40, 18,101.70 and 8,770.20

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Solution

The fourth proportional to 12,053.40, 18,101.70 and 8,770.20 is: 13,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,053.40 : 18,101.70 = 8,770.20 : x
  2. Step 2: Convert to fraction form
    12,053.40/18,101.70 = 8,770.20/x
  3. Step 3: Cross multiply
    12,053.40x = 18,101.70 × 8,770.20
  4. Step 4: Simplify right side
    12,053.40x = 158,755,529.34
  5. Step 5: Solve for x
    x = 158,755,529.34/12,053.40
  6. Step 6: Final answer
    x = 13,171.02

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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.