Home / 18,176.80-27,269.28-6,490

Finding the Fourth Proportional to 18,176.80, 27,269.28 and 6,490

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Solution

The fourth proportional to 18,176.80, 27,269.28 and 6,490 is: 9,736.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.80 : 27,269.28 = 6,490 : x
  2. Step 2: Convert to fraction form
    18,176.80/27,269.28 = 6,490/x
  3. Step 3: Cross multiply
    18,176.80x = 27,269.28 × 6,490
  4. Step 4: Simplify right side
    18,176.80x = 176,977,627.20
  5. Step 5: Solve for x
    x = 176,977,627.20/18,176.80
  6. Step 6: Final answer
    x = 9,736.46

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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.