Home / 8,415.36-11,613.71-4,638.52

Finding the Fourth Proportional to 8,415.36, 11,613.71 and 4,638.52

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Solution

The fourth proportional to 8,415.36, 11,613.71 and 4,638.52 is: 6,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.36 : 11,613.71 = 4,638.52 : x
  2. Step 2: Convert to fraction form
    8,415.36/11,613.71 = 4,638.52/x
  3. Step 3: Cross multiply
    8,415.36x = 11,613.71 × 4,638.52
  4. Step 4: Simplify right side
    8,415.36x = 53,870,426.11
  5. Step 5: Solve for x
    x = 53,870,426.11/8,415.36
  6. Step 6: Final answer
    x = 6,401.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.