Home / 13,319.64-18,380.16-7,350.03

Finding the Fourth Proportional to 13,319.64, 18,380.16 and 7,350.03

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Solution

The fourth proportional to 13,319.64, 18,380.16 and 7,350.03 is: 10,142.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.64 : 18,380.16 = 7,350.03 : x
  2. Step 2: Convert to fraction form
    13,319.64/18,380.16 = 7,350.03/x
  3. Step 3: Cross multiply
    13,319.64x = 18,380.16 × 7,350.03
  4. Step 4: Simplify right side
    13,319.64x = 135,094,727.40
  5. Step 5: Solve for x
    x = 135,094,727.40/13,319.64
  6. Step 6: Final answer
    x = 10,142.52

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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.