Home / 18,411.90-27,618.81-5,266.26

Finding the Fourth Proportional to 18,411.90, 27,618.81 and 5,266.26

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Solution

The fourth proportional to 18,411.90, 27,618.81 and 5,266.26 is: 7,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.90 : 27,618.81 = 5,266.26 : x
  2. Step 2: Convert to fraction form
    18,411.90/27,618.81 = 5,266.26/x
  3. Step 3: Cross multiply
    18,411.90x = 27,618.81 × 5,266.26
  4. Step 4: Simplify right side
    18,411.90x = 145,447,834.35
  5. Step 5: Solve for x
    x = 145,447,834.35/18,411.90
  6. Step 6: Final answer
    x = 7,899.66

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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.