Home / 8,475.05-12,715.63-2,928.96

Finding the Fourth Proportional to 8,475.05, 12,715.63 and 2,928.96

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Solution

The fourth proportional to 8,475.05, 12,715.63 and 2,928.96 is: 4,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.05 : 12,715.63 = 2,928.96 : x
  2. Step 2: Convert to fraction form
    8,475.05/12,715.63 = 2,928.96/x
  3. Step 3: Cross multiply
    8,475.05x = 12,715.63 × 2,928.96
  4. Step 4: Simplify right side
    8,475.05x = 37,243,493.42
  5. Step 5: Solve for x
    x = 37,243,493.42/8,475.05
  6. Step 6: Final answer
    x = 4,394.49

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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.