Home / 13,345.58-18,416.40-7,377.32

Finding the Fourth Proportional to 13,345.58, 18,416.40 and 7,377.32

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Solution

The fourth proportional to 13,345.58, 18,416.40 and 7,377.32 is: 10,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.58 : 18,416.40 = 7,377.32 : x
  2. Step 2: Convert to fraction form
    13,345.58/18,416.40 = 7,377.32/x
  3. Step 3: Cross multiply
    13,345.58x = 18,416.40 × 7,377.32
  4. Step 4: Simplify right side
    13,345.58x = 135,863,676.05
  5. Step 5: Solve for x
    x = 135,863,676.05/13,345.58
  6. Step 6: Final answer
    x = 10,180.42

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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.