Home / 11,089.94-15,300.09-8,538.48

Finding the Fourth Proportional to 11,089.94, 15,300.09 and 8,538.48

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Solution

The fourth proportional to 11,089.94, 15,300.09 and 8,538.48 is: 11,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.94 : 15,300.09 = 8,538.48 : x
  2. Step 2: Convert to fraction form
    11,089.94/15,300.09 = 8,538.48/x
  3. Step 3: Cross multiply
    11,089.94x = 15,300.09 × 8,538.48
  4. Step 4: Simplify right side
    11,089.94x = 130,639,512.46
  5. Step 5: Solve for x
    x = 130,639,512.46/11,089.94
  6. Step 6: Final answer
    x = 11,780.01

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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.