Home / 17,899.16-26,838.14-5,415.40

Finding the Fourth Proportional to 17,899.16, 26,838.14 and 5,415.40

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Solution

The fourth proportional to 17,899.16, 26,838.14 and 5,415.40 is: 8,119.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899.16 : 26,838.14 = 5,415.40 : x
  2. Step 2: Convert to fraction form
    17,899.16/26,838.14 = 5,415.40/x
  3. Step 3: Cross multiply
    17,899.16x = 26,838.14 × 5,415.40
  4. Step 4: Simplify right side
    17,899.16x = 145,339,263.36
  5. Step 5: Solve for x
    x = 145,339,263.36/17,899.16
  6. Step 6: Final answer
    x = 8,119.89

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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.