Home / 13,520.24-18,656.08-7,551.15

Finding the Fourth Proportional to 13,520.24, 18,656.08 and 7,551.15

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Solution

The fourth proportional to 13,520.24, 18,656.08 and 7,551.15 is: 10,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.24 : 18,656.08 = 7,551.15 : x
  2. Step 2: Convert to fraction form
    13,520.24/18,656.08 = 7,551.15/x
  3. Step 3: Cross multiply
    13,520.24x = 18,656.08 × 7,551.15
  4. Step 4: Simplify right side
    13,520.24x = 140,874,858.49
  5. Step 5: Solve for x
    x = 140,874,858.49/13,520.24
  6. Step 6: Final answer
    x = 10,419.55

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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.