Home / 13,314.30-18,373.78-7,345.96

Finding the Fourth Proportional to 13,314.30, 18,373.78 and 7,345.96

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Solution

The fourth proportional to 13,314.30, 18,373.78 and 7,345.96 is: 10,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.30 : 18,373.78 = 7,345.96 : x
  2. Step 2: Convert to fraction form
    13,314.30/18,373.78 = 7,345.96/x
  3. Step 3: Cross multiply
    13,314.30x = 18,373.78 × 7,345.96
  4. Step 4: Simplify right side
    13,314.30x = 134,973,052.93
  5. Step 5: Solve for x
    x = 134,973,052.93/13,314.30
  6. Step 6: Final answer
    x = 10,137.45

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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.