Home / 8,271.99-11,411.06-5,122.71

Finding the Fourth Proportional to 8,271.99, 11,411.06 and 5,122.71

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Solution

The fourth proportional to 8,271.99, 11,411.06 and 5,122.71 is: 7,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.99 : 11,411.06 = 5,122.71 : x
  2. Step 2: Convert to fraction form
    8,271.99/11,411.06 = 5,122.71/x
  3. Step 3: Cross multiply
    8,271.99x = 11,411.06 × 5,122.71
  4. Step 4: Simplify right side
    8,271.99x = 58,455,551.17
  5. Step 5: Solve for x
    x = 58,455,551.17/8,271.99
  6. Step 6: Final answer
    x = 7,066.69

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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.