Home / 13,345.56-18,417.38-7,377.48

Finding the Fourth Proportional to 13,345.56, 18,417.38 and 7,377.48

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Solution

The fourth proportional to 13,345.56, 18,417.38 and 7,377.48 is: 10,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.56 : 18,417.38 = 7,377.48 : x
  2. Step 2: Convert to fraction form
    13,345.56/18,417.38 = 7,377.48/x
  3. Step 3: Cross multiply
    13,345.56x = 18,417.38 × 7,377.48
  4. Step 4: Simplify right side
    13,345.56x = 135,873,815.72
  5. Step 5: Solve for x
    x = 135,873,815.72/13,345.56
  6. Step 6: Final answer
    x = 10,181.20

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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.