Home / 10,177.29-15,264.72-2,782.40

Finding the Fourth Proportional to 10,177.29, 15,264.72 and 2,782.40

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Solution

The fourth proportional to 10,177.29, 15,264.72 and 2,782.40 is: 4,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,177.29 : 15,264.72 = 2,782.40 : x
  2. Step 2: Convert to fraction form
    10,177.29/15,264.72 = 2,782.40/x
  3. Step 3: Cross multiply
    10,177.29x = 15,264.72 × 2,782.40
  4. Step 4: Simplify right side
    10,177.29x = 42,472,480.60
  5. Step 5: Solve for x
    x = 42,472,480.60/10,177.29
  6. Step 6: Final answer
    x = 4,173.26

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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.