Home / 12,588.04-18,884.33-5,188.38

Finding the Fourth Proportional to 12,588.04, 18,884.33 and 5,188.38

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Solution

The fourth proportional to 12,588.04, 18,884.33 and 5,188.38 is: 7,783.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.04 : 18,884.33 = 5,188.38 : x
  2. Step 2: Convert to fraction form
    12,588.04/18,884.33 = 5,188.38/x
  3. Step 3: Cross multiply
    12,588.04x = 18,884.33 × 5,188.38
  4. Step 4: Simplify right side
    12,588.04x = 97,979,080.09
  5. Step 5: Solve for x
    x = 97,979,080.09/12,588.04
  6. Step 6: Final answer
    x = 7,783.51

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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.