Home / 10,155.60-15,214.68-8,522.64

Finding the Fourth Proportional to 10,155.60, 15,214.68 and 8,522.64

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Solution

The fourth proportional to 10,155.60, 15,214.68 and 8,522.64 is: 12,768.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.60 : 15,214.68 = 8,522.64 : x
  2. Step 2: Convert to fraction form
    10,155.60/15,214.68 = 8,522.64/x
  3. Step 3: Cross multiply
    10,155.60x = 15,214.68 × 8,522.64
  4. Step 4: Simplify right side
    10,155.60x = 129,669,240.36
  5. Step 5: Solve for x
    x = 129,669,240.36/10,155.60
  6. Step 6: Final answer
    x = 12,768.25

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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.