Home / 11,333.76-15,638.18-6,615.92

Finding the Fourth Proportional to 11,333.76, 15,638.18 and 6,615.92

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Solution

The fourth proportional to 11,333.76, 15,638.18 and 6,615.92 is: 9,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,333.76 : 15,638.18 = 6,615.92 : x
  2. Step 2: Convert to fraction form
    11,333.76/15,638.18 = 6,615.92/x
  3. Step 3: Cross multiply
    11,333.76x = 15,638.18 × 6,615.92
  4. Step 4: Simplify right side
    11,333.76x = 103,460,947.83
  5. Step 5: Solve for x
    x = 103,460,947.83/11,333.76
  6. Step 6: Final answer
    x = 9,128.56

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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.