Home / 13,056.60-19,584.90-12,487.80

Finding the Fourth Proportional to 13,056.60, 19,584.90 and 12,487.80

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Solution

The fourth proportional to 13,056.60, 19,584.90 and 12,487.80 is: 18,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.60 : 19,584.90 = 12,487.80 : x
  2. Step 2: Convert to fraction form
    13,056.60/19,584.90 = 12,487.80/x
  3. Step 3: Cross multiply
    13,056.60x = 19,584.90 × 12,487.80
  4. Step 4: Simplify right side
    13,056.60x = 244,572,314.22
  5. Step 5: Solve for x
    x = 244,572,314.22/13,056.60
  6. Step 6: Final answer
    x = 18,731.70

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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.