Home / 11,899.40-16,420.50-6,594.20

Finding the Fourth Proportional to 11,899.40, 16,420.50 and 6,594.20

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Solution

The fourth proportional to 11,899.40, 16,420.50 and 6,594.20 is: 9,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.40 : 16,420.50 = 6,594.20 : x
  2. Step 2: Convert to fraction form
    11,899.40/16,420.50 = 6,594.20/x
  3. Step 3: Cross multiply
    11,899.40x = 16,420.50 × 6,594.20
  4. Step 4: Simplify right side
    11,899.40x = 108,280,061.10
  5. Step 5: Solve for x
    x = 108,280,061.10/11,899.40
  6. Step 6: Final answer
    x = 9,099.62

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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.