Home / 11,228.48-15,495.36-6,513.92

Finding the Fourth Proportional to 11,228.48, 15,495.36 and 6,513.92

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Solution

The fourth proportional to 11,228.48, 15,495.36 and 6,513.92 is: 8,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.48 : 15,495.36 = 6,513.92 : x
  2. Step 2: Convert to fraction form
    11,228.48/15,495.36 = 6,513.92/x
  3. Step 3: Cross multiply
    11,228.48x = 15,495.36 × 6,513.92
  4. Step 4: Simplify right side
    11,228.48x = 100,935,535.41
  5. Step 5: Solve for x
    x = 100,935,535.41/11,228.48
  6. Step 6: Final answer
    x = 8,989.24

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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.