Home / 12,577.60-18,877.20-5,568.40

Finding the Fourth Proportional to 12,577.60, 18,877.20 and 5,568.40

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Solution

The fourth proportional to 12,577.60, 18,877.20 and 5,568.40 is: 8,357.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.60 : 18,877.20 = 5,568.40 : x
  2. Step 2: Convert to fraction form
    12,577.60/18,877.20 = 5,568.40/x
  3. Step 3: Cross multiply
    12,577.60x = 18,877.20 × 5,568.40
  4. Step 4: Simplify right side
    12,577.60x = 105,115,800.48
  5. Step 5: Solve for x
    x = 105,115,800.48/12,577.60
  6. Step 6: Final answer
    x = 8,357.38

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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.