Home / 10,563.60-15,845.40-5,314.80

Finding the Fourth Proportional to 10,563.60, 15,845.40 and 5,314.80

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Solution

The fourth proportional to 10,563.60, 15,845.40 and 5,314.80 is: 7,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,563.60 : 15,845.40 = 5,314.80 : x
  2. Step 2: Convert to fraction form
    10,563.60/15,845.40 = 5,314.80/x
  3. Step 3: Cross multiply
    10,563.60x = 15,845.40 × 5,314.80
  4. Step 4: Simplify right side
    10,563.60x = 84,215,131.92
  5. Step 5: Solve for x
    x = 84,215,131.92/10,563.60
  6. Step 6: Final answer
    x = 7,972.20

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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.