Home / 10,086.51-15,130.88-2,691.01

Finding the Fourth Proportional to 10,086.51, 15,130.88 and 2,691.01

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Solution

The fourth proportional to 10,086.51, 15,130.88 and 2,691.01 is: 4,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.51 : 15,130.88 = 2,691.01 : x
  2. Step 2: Convert to fraction form
    10,086.51/15,130.88 = 2,691.01/x
  3. Step 3: Cross multiply
    10,086.51x = 15,130.88 × 2,691.01
  4. Step 4: Simplify right side
    10,086.51x = 40,717,349.39
  5. Step 5: Solve for x
    x = 40,717,349.39/10,086.51
  6. Step 6: Final answer
    x = 4,036.81

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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.