Home / 7,971.19-10,996.08-5,137.81

Finding the Fourth Proportional to 7,971.19, 10,996.08 and 5,137.81

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Solution

The fourth proportional to 7,971.19, 10,996.08 and 5,137.81 is: 7,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.19 : 10,996.08 = 5,137.81 : x
  2. Step 2: Convert to fraction form
    7,971.19/10,996.08 = 5,137.81/x
  3. Step 3: Cross multiply
    7,971.19x = 10,996.08 × 5,137.81
  4. Step 4: Simplify right side
    7,971.19x = 56,495,769.78
  5. Step 5: Solve for x
    x = 56,495,769.78/7,971.19
  6. Step 6: Final answer
    x = 7,087.50

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1.5x scale

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.