Home / 13,314.20-18,373.60-7,345.88

Finding the Fourth Proportional to 13,314.20, 18,373.60 and 7,345.88

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Solution

The fourth proportional to 13,314.20, 18,373.60 and 7,345.88 is: 10,137.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.20 : 18,373.60 = 7,345.88 : x
  2. Step 2: Convert to fraction form
    13,314.20/18,373.60 = 7,345.88/x
  3. Step 3: Cross multiply
    13,314.20x = 18,373.60 × 7,345.88
  4. Step 4: Simplify right side
    13,314.20x = 134,970,288.34
  5. Step 5: Solve for x
    x = 134,970,288.34/13,314.20
  6. Step 6: Final answer
    x = 10,137.32

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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.