Home / 18,280.78-27,429.51-9,948.30

Finding the Fourth Proportional to 18,280.78, 27,429.51 and 9,948.30

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Solution

The fourth proportional to 18,280.78, 27,429.51 and 9,948.30 is: 14,926.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.78 : 27,429.51 = 9,948.30 : x
  2. Step 2: Convert to fraction form
    18,280.78/27,429.51 = 9,948.30/x
  3. Step 3: Cross multiply
    18,280.78x = 27,429.51 × 9,948.30
  4. Step 4: Simplify right side
    18,280.78x = 272,876,994.33
  5. Step 5: Solve for x
    x = 272,876,994.33/18,280.78
  6. Step 6: Final answer
    x = 14,926.99

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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.