Home / 11,562.56-17,349.60-4,990.40

Finding the Fourth Proportional to 11,562.56, 17,349.60 and 4,990.40

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Solution

The fourth proportional to 11,562.56, 17,349.60 and 4,990.40 is: 7,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,562.56 : 17,349.60 = 4,990.40 : x
  2. Step 2: Convert to fraction form
    11,562.56/17,349.60 = 4,990.40/x
  3. Step 3: Cross multiply
    11,562.56x = 17,349.60 × 4,990.40
  4. Step 4: Simplify right side
    11,562.56x = 86,581,443.84
  5. Step 5: Solve for x
    x = 86,581,443.84/11,562.56
  6. Step 6: Final answer
    x = 7,488.09

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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.