Home / 13,480.04-18,590.82-8,762.60

Finding the Fourth Proportional to 13,480.04, 18,590.82 and 8,762.60

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Solution

The fourth proportional to 13,480.04, 18,590.82 and 8,762.60 is: 12,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.04 : 18,590.82 = 8,762.60 : x
  2. Step 2: Convert to fraction form
    13,480.04/18,590.82 = 8,762.60/x
  3. Step 3: Cross multiply
    13,480.04x = 18,590.82 × 8,762.60
  4. Step 4: Simplify right side
    13,480.04x = 162,903,919.33
  5. Step 5: Solve for x
    x = 162,903,919.33/13,480.04
  6. Step 6: Final answer
    x = 12,084.82

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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.