Home / 10,679.36-15,997.28-8,712

Finding the Fourth Proportional to 10,679.36, 15,997.28 and 8,712

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Solution

The fourth proportional to 10,679.36, 15,997.28 and 8,712 is: 13,050.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.36 : 15,997.28 = 8,712 : x
  2. Step 2: Convert to fraction form
    10,679.36/15,997.28 = 8,712/x
  3. Step 3: Cross multiply
    10,679.36x = 15,997.28 × 8,712
  4. Step 4: Simplify right side
    10,679.36x = 139,368,303.36
  5. Step 5: Solve for x
    x = 139,368,303.36/10,679.36
  6. Step 6: Final answer
    x = 13,050.25

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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.