Home / 18,303.12-27,438.48-8,937.90

Finding the Fourth Proportional to 18,303.12, 27,438.48 and 8,937.90

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Solution

The fourth proportional to 18,303.12, 27,438.48 and 8,937.90 is: 13,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.12 : 27,438.48 = 8,937.90 : x
  2. Step 2: Convert to fraction form
    18,303.12/27,438.48 = 8,937.90/x
  3. Step 3: Cross multiply
    18,303.12x = 27,438.48 × 8,937.90
  4. Step 4: Simplify right side
    18,303.12x = 245,242,390.39
  5. Step 5: Solve for x
    x = 245,242,390.39/18,303.12
  6. Step 6: Final answer
    x = 13,398.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.