Home / 11,178.60-16,780.70-6,564.20

Finding the Fourth Proportional to 11,178.60, 16,780.70 and 6,564.20

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Solution

The fourth proportional to 11,178.60, 16,780.70 and 6,564.20 is: 9,853.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.60 : 16,780.70 = 6,564.20 : x
  2. Step 2: Convert to fraction form
    11,178.60/16,780.70 = 6,564.20/x
  3. Step 3: Cross multiply
    11,178.60x = 16,780.70 × 6,564.20
  4. Step 4: Simplify right side
    11,178.60x = 110,151,870.94
  5. Step 5: Solve for x
    x = 110,151,870.94/11,178.60
  6. Step 6: Final answer
    x = 9,853.82

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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.