Home / 8,289.05-12,416.22-5,000.40

Finding the Fourth Proportional to 8,289.05, 12,416.22 and 5,000.40

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Solution

The fourth proportional to 8,289.05, 12,416.22 and 5,000.40 is: 7,490.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.05 : 12,416.22 = 5,000.40 : x
  2. Step 2: Convert to fraction form
    8,289.05/12,416.22 = 5,000.40/x
  3. Step 3: Cross multiply
    8,289.05x = 12,416.22 × 5,000.40
  4. Step 4: Simplify right side
    8,289.05x = 62,086,066.49
  5. Step 5: Solve for x
    x = 62,086,066.49/8,289.05
  6. Step 6: Final answer
    x = 7,490.14

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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.