Home / 18,370.73-27,547.90-5,220.05

Finding the Fourth Proportional to 18,370.73, 27,547.90 and 5,220.05

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Solution

The fourth proportional to 18,370.73, 27,547.90 and 5,220.05 is: 7,827.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.73 : 27,547.90 = 5,220.05 : x
  2. Step 2: Convert to fraction form
    18,370.73/27,547.90 = 5,220.05/x
  3. Step 3: Cross multiply
    18,370.73x = 27,547.90 × 5,220.05
  4. Step 4: Simplify right side
    18,370.73x = 143,801,264.61
  5. Step 5: Solve for x
    x = 143,801,264.61/18,370.73
  6. Step 6: Final answer
    x = 7,827.74

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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.