Home / 8,742.51-13,113.99-2,899.17

Finding the Fourth Proportional to 8,742.51, 13,113.99 and 2,899.17

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Solution

The fourth proportional to 8,742.51, 13,113.99 and 2,899.17 is: 4,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.51 : 13,113.99 = 2,899.17 : x
  2. Step 2: Convert to fraction form
    8,742.51/13,113.99 = 2,899.17/x
  3. Step 3: Cross multiply
    8,742.51x = 13,113.99 × 2,899.17
  4. Step 4: Simplify right side
    8,742.51x = 38,019,686.39
  5. Step 5: Solve for x
    x = 38,019,686.39/8,742.51
  6. Step 6: Final answer
    x = 4,348.83

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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.