Home / 11,387.13-17,056.78-7,225.00

Finding the Fourth Proportional to 11,387.13, 17,056.78 and 7,225.00

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Solution

The fourth proportional to 11,387.13, 17,056.78 and 7,225.00 is: 10,822.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.13 : 17,056.78 = 7,225.00 : x
  2. Step 2: Convert to fraction form
    11,387.13/17,056.78 = 7,225.00/x
  3. Step 3: Cross multiply
    11,387.13x = 17,056.78 × 7,225.00
  4. Step 4: Simplify right side
    11,387.13x = 123,235,174.80
  5. Step 5: Solve for x
    x = 123,235,174.80/11,387.13
  6. Step 6: Final answer
    x = 10,822.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.