Home / 7,217.52-10,833.57-5,139.87

Finding the Fourth Proportional to 7,217.52, 10,833.57 and 5,139.87

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Solution

The fourth proportional to 7,217.52, 10,833.57 and 5,139.87 is: 7,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.52 : 10,833.57 = 5,139.87 : x
  2. Step 2: Convert to fraction form
    7,217.52/10,833.57 = 5,139.87/x
  3. Step 3: Cross multiply
    7,217.52x = 10,833.57 × 5,139.87
  4. Step 4: Simplify right side
    7,217.52x = 55,683,141.44
  5. Step 5: Solve for x
    x = 55,683,141.44/7,217.52
  6. Step 6: Final answer
    x = 7,715.00

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1.5x scale

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.