Home / 12,869.60-19,280.10-6,608.30

Finding the Fourth Proportional to 12,869.60, 19,280.10 and 6,608.30

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Solution

The fourth proportional to 12,869.60, 19,280.10 and 6,608.30 is: 9,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.60 : 19,280.10 = 6,608.30 : x
  2. Step 2: Convert to fraction form
    12,869.60/19,280.10 = 6,608.30/x
  3. Step 3: Cross multiply
    12,869.60x = 19,280.10 × 6,608.30
  4. Step 4: Simplify right side
    12,869.60x = 127,408,684.83
  5. Step 5: Solve for x
    x = 127,408,684.83/12,869.60
  6. Step 6: Final answer
    x = 9,899.97

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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.