Home / 9,089.10-13,670.10-8,141.40

Finding the Fourth Proportional to 9,089.10, 13,670.10 and 8,141.40

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Solution

The fourth proportional to 9,089.10, 13,670.10 and 8,141.40 is: 12,244.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.10 : 13,670.10 = 8,141.40 : x
  2. Step 2: Convert to fraction form
    9,089.10/13,670.10 = 8,141.40/x
  3. Step 3: Cross multiply
    9,089.10x = 13,670.10 × 8,141.40
  4. Step 4: Simplify right side
    9,089.10x = 111,293,752.14
  5. Step 5: Solve for x
    x = 111,293,752.14/9,089.10
  6. Step 6: Final answer
    x = 12,244.75

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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.