Home / 11,323.60-16,985.40-8,558.80

Finding the Fourth Proportional to 11,323.60, 16,985.40 and 8,558.80

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Solution

The fourth proportional to 11,323.60, 16,985.40 and 8,558.80 is: 12,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,323.60 : 16,985.40 = 8,558.80 : x
  2. Step 2: Convert to fraction form
    11,323.60/16,985.40 = 8,558.80/x
  3. Step 3: Cross multiply
    11,323.60x = 16,985.40 × 8,558.80
  4. Step 4: Simplify right side
    11,323.60x = 145,374,641.52
  5. Step 5: Solve for x
    x = 145,374,641.52/11,323.60
  6. Step 6: Final answer
    x = 12,838.20

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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.