Home / 13,317.68-18,378.36-7,349.32

Finding the Fourth Proportional to 13,317.68, 18,378.36 and 7,349.32

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Solution

The fourth proportional to 13,317.68, 18,378.36 and 7,349.32 is: 10,142.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.68 : 18,378.36 = 7,349.32 : x
  2. Step 2: Convert to fraction form
    13,317.68/18,378.36 = 7,349.32/x
  3. Step 3: Cross multiply
    13,317.68x = 18,378.36 × 7,349.32
  4. Step 4: Simplify right side
    13,317.68x = 135,068,448.72
  5. Step 5: Solve for x
    x = 135,068,448.72/13,317.68
  6. Step 6: Final answer
    x = 10,142.04

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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.