Home / 8,349.15-12,528.58-3,155.43

Finding the Fourth Proportional to 8,349.15, 12,528.58 and 3,155.43

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Solution

The fourth proportional to 8,349.15, 12,528.58 and 3,155.43 is: 4,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.15 : 12,528.58 = 3,155.43 : x
  2. Step 2: Convert to fraction form
    8,349.15/12,528.58 = 3,155.43/x
  3. Step 3: Cross multiply
    8,349.15x = 12,528.58 × 3,155.43
  4. Step 4: Simplify right side
    8,349.15x = 39,533,057.19
  5. Step 5: Solve for x
    x = 39,533,057.19/8,349.15
  6. Step 6: Final answer
    x = 4,734.98

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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.