Home / 10,010.20-13,784.58-8,583.40

Finding the Fourth Proportional to 10,010.20, 13,784.58 and 8,583.40

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Solution

The fourth proportional to 10,010.20, 13,784.58 and 8,583.40 is: 11,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.20 : 13,784.58 = 8,583.40 : x
  2. Step 2: Convert to fraction form
    10,010.20/13,784.58 = 8,583.40/x
  3. Step 3: Cross multiply
    10,010.20x = 13,784.58 × 8,583.40
  4. Step 4: Simplify right side
    10,010.20x = 118,318,563.97
  5. Step 5: Solve for x
    x = 118,318,563.97/10,010.20
  6. Step 6: Final answer
    x = 11,819.80

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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.