Home / 11,487.10-17,230.65-4,561.60

Finding the Fourth Proportional to 11,487.10, 17,230.65 and 4,561.60

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Solution

The fourth proportional to 11,487.10, 17,230.65 and 4,561.60 is: 6,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.10 : 17,230.65 = 4,561.60 : x
  2. Step 2: Convert to fraction form
    11,487.10/17,230.65 = 4,561.60/x
  3. Step 3: Cross multiply
    11,487.10x = 17,230.65 × 4,561.60
  4. Step 4: Simplify right side
    11,487.10x = 78,599,333.04
  5. Step 5: Solve for x
    x = 78,599,333.04/11,487.10
  6. Step 6: Final answer
    x = 6,842.40

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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.