Home / 8,849.20-13,284.60-8,784.40

Finding the Fourth Proportional to 8,849.20, 13,284.60 and 8,784.40

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Solution

The fourth proportional to 8,849.20, 13,284.60 and 8,784.40 is: 13,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.20 : 13,284.60 = 8,784.40 : x
  2. Step 2: Convert to fraction form
    8,849.20/13,284.60 = 8,784.40/x
  3. Step 3: Cross multiply
    8,849.20x = 13,284.60 × 8,784.40
  4. Step 4: Simplify right side
    8,849.20x = 116,697,240.24
  5. Step 5: Solve for x
    x = 116,697,240.24/8,849.20
  6. Step 6: Final answer
    x = 13,187.32

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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.