Home / 18,390.21-27,585.58-8,897.01

Finding the Fourth Proportional to 18,390.21, 27,585.58 and 8,897.01

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Solution

The fourth proportional to 18,390.21, 27,585.58 and 8,897.01 is: 13,345.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.21 : 27,585.58 = 8,897.01 : x
  2. Step 2: Convert to fraction form
    18,390.21/27,585.58 = 8,897.01/x
  3. Step 3: Cross multiply
    18,390.21x = 27,585.58 × 8,897.01
  4. Step 4: Simplify right side
    18,390.21x = 245,429,181.12
  5. Step 5: Solve for x
    x = 245,429,181.12/18,390.21
  6. Step 6: Final answer
    x = 13,345.64

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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.