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Finding the Fourth Proportional to 11,503.19, 17,254.95 and 7,579.57

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Solution

The fourth proportional to 11,503.19, 17,254.95 and 7,579.57 is: 11,369.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.19 : 17,254.95 = 7,579.57 : x
  2. Step 2: Convert to fraction form
    11,503.19/17,254.95 = 7,579.57/x
  3. Step 3: Cross multiply
    11,503.19x = 17,254.95 × 7,579.57
  4. Step 4: Simplify right side
    11,503.19x = 130,785,101.37
  5. Step 5: Solve for x
    x = 130,785,101.37/11,503.19
  6. Step 6: Final answer
    x = 11,369.46

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1.5x scale

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.