Home / 13,320.26-18,380.96-7,655.02

Finding the Fourth Proportional to 13,320.26, 18,380.96 and 7,655.02

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Solution

The fourth proportional to 13,320.26, 18,380.96 and 7,655.02 is: 10,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.26 : 18,380.96 = 7,655.02 : x
  2. Step 2: Convert to fraction form
    13,320.26/18,380.96 = 7,655.02/x
  3. Step 3: Cross multiply
    13,320.26x = 18,380.96 × 7,655.02
  4. Step 4: Simplify right side
    13,320.26x = 140,706,532.19
  5. Step 5: Solve for x
    x = 140,706,532.19/13,320.26
  6. Step 6: Final answer
    x = 10,563.35

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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.