Home / 13,486.18-18,613.98-8,762.26

Finding the Fourth Proportional to 13,486.18, 18,613.98 and 8,762.26

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Solution

The fourth proportional to 13,486.18, 18,613.98 and 8,762.26 is: 12,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.18 : 18,613.98 = 8,762.26 : x
  2. Step 2: Convert to fraction form
    13,486.18/18,613.98 = 8,762.26/x
  3. Step 3: Cross multiply
    13,486.18x = 18,613.98 × 8,762.26
  4. Step 4: Simplify right side
    13,486.18x = 163,100,532.39
  5. Step 5: Solve for x
    x = 163,100,532.39/13,486.18
  6. Step 6: Final answer
    x = 12,093.90

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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.