Home / 10,177.79-15,266.51-2,782.25

Finding the Fourth Proportional to 10,177.79, 15,266.51 and 2,782.25

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Solution

The fourth proportional to 10,177.79, 15,266.51 and 2,782.25 is: 4,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.79 : 15,266.51 = 2,782.25 : x
  2. Step 2: Convert to fraction form
    10,177.79/15,266.51 = 2,782.25/x
  3. Step 3: Cross multiply
    10,177.79x = 15,266.51 × 2,782.25
  4. Step 4: Simplify right side
    10,177.79x = 42,475,224.89
  5. Step 5: Solve for x
    x = 42,475,224.89/10,177.79
  6. Step 6: Final answer
    x = 4,173.33

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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.