Home / 10,269.19-15,403.79-2,478

Finding the Fourth Proportional to 10,269.19, 15,403.79 and 2,478

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Solution

The fourth proportional to 10,269.19, 15,403.79 and 2,478 is: 3,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,269.19 : 15,403.79 = 2,478 : x
  2. Step 2: Convert to fraction form
    10,269.19/15,403.79 = 2,478/x
  3. Step 3: Cross multiply
    10,269.19x = 15,403.79 × 2,478
  4. Step 4: Simplify right side
    10,269.19x = 38,170,579.23
  5. Step 5: Solve for x
    x = 38,170,579.23/10,269.19
  6. Step 6: Final answer
    x = 3,717.00

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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.