Home / 11,688.72-16,130.40-6,383.52

Finding the Fourth Proportional to 11,688.72, 16,130.40 and 6,383.52

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Solution

The fourth proportional to 11,688.72, 16,130.40 and 6,383.52 is: 8,809.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.72 : 16,130.40 = 6,383.52 : x
  2. Step 2: Convert to fraction form
    11,688.72/16,130.40 = 6,383.52/x
  3. Step 3: Cross multiply
    11,688.72x = 16,130.40 × 6,383.52
  4. Step 4: Simplify right side
    11,688.72x = 102,968,731.01
  5. Step 5: Solve for x
    x = 102,968,731.01/11,688.72
  6. Step 6: Final answer
    x = 8,809.24

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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.