Home / 11,030.40-15,220.80-6,553.92

Finding the Fourth Proportional to 11,030.40, 15,220.80 and 6,553.92

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Solution

The fourth proportional to 11,030.40, 15,220.80 and 6,553.92 is: 9,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.40 : 15,220.80 = 6,553.92 : x
  2. Step 2: Convert to fraction form
    11,030.40/15,220.80 = 6,553.92/x
  3. Step 3: Cross multiply
    11,030.40x = 15,220.80 × 6,553.92
  4. Step 4: Simplify right side
    11,030.40x = 99,755,905.54
  5. Step 5: Solve for x
    x = 99,755,905.54/11,030.40
  6. Step 6: Final answer
    x = 9,043.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.