Home / 13,520.52-18,657.30-7,551.03

Finding the Fourth Proportional to 13,520.52, 18,657.30 and 7,551.03

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Solution

The fourth proportional to 13,520.52, 18,657.30 and 7,551.03 is: 10,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.52 : 18,657.30 = 7,551.03 : x
  2. Step 2: Convert to fraction form
    13,520.52/18,657.30 = 7,551.03/x
  3. Step 3: Cross multiply
    13,520.52x = 18,657.30 × 7,551.03
  4. Step 4: Simplify right side
    13,520.52x = 140,881,832.02
  5. Step 5: Solve for x
    x = 140,881,832.02/13,520.52
  6. Step 6: Final answer
    x = 10,419.85

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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.