Home / 10,813.60-16,219.66-6,654.28

Finding the Fourth Proportional to 10,813.60, 16,219.66 and 6,654.28

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Solution

The fourth proportional to 10,813.60, 16,219.66 and 6,654.28 is: 9,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.60 : 16,219.66 = 6,654.28 : x
  2. Step 2: Convert to fraction form
    10,813.60/16,219.66 = 6,654.28/x
  3. Step 3: Cross multiply
    10,813.60x = 16,219.66 × 6,654.28
  4. Step 4: Simplify right side
    10,813.60x = 107,930,159.14
  5. Step 5: Solve for x
    x = 107,930,159.14/10,813.60
  6. Step 6: Final answer
    x = 9,980.96

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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.