Home / 11,409.16-15,735.06-9,047.56

Finding the Fourth Proportional to 11,409.16, 15,735.06 and 9,047.56

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Solution

The fourth proportional to 11,409.16, 15,735.06 and 9,047.56 is: 12,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.16 : 15,735.06 = 9,047.56 : x
  2. Step 2: Convert to fraction form
    11,409.16/15,735.06 = 9,047.56/x
  3. Step 3: Cross multiply
    11,409.16x = 15,735.06 × 9,047.56
  4. Step 4: Simplify right side
    11,409.16x = 142,363,899.45
  5. Step 5: Solve for x
    x = 142,363,899.45/11,409.16
  6. Step 6: Final answer
    x = 12,478.04

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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.