Home / 13,434.28-18,539.32-7,465.80

Finding the Fourth Proportional to 13,434.28, 18,539.32 and 7,465.80

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Solution

The fourth proportional to 13,434.28, 18,539.32 and 7,465.80 is: 10,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.28 : 18,539.32 = 7,465.80 : x
  2. Step 2: Convert to fraction form
    13,434.28/18,539.32 = 7,465.80/x
  3. Step 3: Cross multiply
    13,434.28x = 18,539.32 × 7,465.80
  4. Step 4: Simplify right side
    13,434.28x = 138,410,855.26
  5. Step 5: Solve for x
    x = 138,410,855.26/13,434.28
  6. Step 6: Final answer
    x = 10,302.81

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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.