Home / 11,579.40-15,963.60-7,328.28

Finding the Fourth Proportional to 11,579.40, 15,963.60 and 7,328.28

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Solution

The fourth proportional to 11,579.40, 15,963.60 and 7,328.28 is: 10,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.40 : 15,963.60 = 7,328.28 : x
  2. Step 2: Convert to fraction form
    11,579.40/15,963.60 = 7,328.28/x
  3. Step 3: Cross multiply
    11,579.40x = 15,963.60 × 7,328.28
  4. Step 4: Simplify right side
    11,579.40x = 116,985,730.61
  5. Step 5: Solve for x
    x = 116,985,730.61/11,579.40
  6. Step 6: Final answer
    x = 10,102.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.