Home / 11,273.34-15,540.95-7,905.70

Finding the Fourth Proportional to 11,273.34, 15,540.95 and 7,905.70

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Solution

The fourth proportional to 11,273.34, 15,540.95 and 7,905.70 is: 10,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.34 : 15,540.95 = 7,905.70 : x
  2. Step 2: Convert to fraction form
    11,273.34/15,540.95 = 7,905.70/x
  3. Step 3: Cross multiply
    11,273.34x = 15,540.95 × 7,905.70
  4. Step 4: Simplify right side
    11,273.34x = 122,862,116.49
  5. Step 5: Solve for x
    x = 122,862,116.49/11,273.34
  6. Step 6: Final answer
    x = 10,898.47

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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.