Home / 13,346.58-18,417.78-7,378.32

Finding the Fourth Proportional to 13,346.58, 18,417.78 and 7,378.32

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Solution

The fourth proportional to 13,346.58, 18,417.78 and 7,378.32 is: 10,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.58 : 18,417.78 = 7,378.32 : x
  2. Step 2: Convert to fraction form
    13,346.58/18,417.78 = 7,378.32/x
  3. Step 3: Cross multiply
    13,346.58x = 18,417.78 × 7,378.32
  4. Step 4: Simplify right side
    13,346.58x = 135,892,274.53
  5. Step 5: Solve for x
    x = 135,892,274.53/13,346.58
  6. Step 6: Final answer
    x = 10,181.80

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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.