Home / 10,971.68-15,140.64-6,495.50

Finding the Fourth Proportional to 10,971.68, 15,140.64 and 6,495.50

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Solution

The fourth proportional to 10,971.68, 15,140.64 and 6,495.50 is: 8,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.68 : 15,140.64 = 6,495.50 : x
  2. Step 2: Convert to fraction form
    10,971.68/15,140.64 = 6,495.50/x
  3. Step 3: Cross multiply
    10,971.68x = 15,140.64 × 6,495.50
  4. Step 4: Simplify right side
    10,971.68x = 98,346,027.12
  5. Step 5: Solve for x
    x = 98,346,027.12/10,971.68
  6. Step 6: Final answer
    x = 8,963.63

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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.