Home / 7,931.62-10,943.67-5,135.50

Finding the Fourth Proportional to 7,931.62, 10,943.67 and 5,135.50

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Solution

The fourth proportional to 7,931.62, 10,943.67 and 5,135.50 is: 7,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.62 : 10,943.67 = 5,135.50 : x
  2. Step 2: Convert to fraction form
    7,931.62/10,943.67 = 5,135.50/x
  3. Step 3: Cross multiply
    7,931.62x = 10,943.67 × 5,135.50
  4. Step 4: Simplify right side
    7,931.62x = 56,201,217.29
  5. Step 5: Solve for x
    x = 56,201,217.29/7,931.62
  6. Step 6: Final answer
    x = 7,085.72

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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.