Home / 11,555.10-15,946.38-6,520.32

Finding the Fourth Proportional to 11,555.10, 15,946.38 and 6,520.32

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Solution

The fourth proportional to 11,555.10, 15,946.38 and 6,520.32 is: 8,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.10 : 15,946.38 = 6,520.32 : x
  2. Step 2: Convert to fraction form
    11,555.10/15,946.38 = 6,520.32/x
  3. Step 3: Cross multiply
    11,555.10x = 15,946.38 × 6,520.32
  4. Step 4: Simplify right side
    11,555.10x = 103,975,500.44
  5. Step 5: Solve for x
    x = 103,975,500.44/11,555.10
  6. Step 6: Final answer
    x = 8,998.23

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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.