Home / 11,525.09-15,905.59-6,681.50

Finding the Fourth Proportional to 11,525.09, 15,905.59 and 6,681.50

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Solution

The fourth proportional to 11,525.09, 15,905.59 and 6,681.50 is: 9,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,525.09 : 15,905.59 = 6,681.50 : x
  2. Step 2: Convert to fraction form
    11,525.09/15,905.59 = 6,681.50/x
  3. Step 3: Cross multiply
    11,525.09x = 15,905.59 × 6,681.50
  4. Step 4: Simplify right side
    11,525.09x = 106,273,199.59
  5. Step 5: Solve for x
    x = 106,273,199.59/11,525.09
  6. Step 6: Final answer
    x = 9,221.03

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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.