Home / 10,910.36-15,065.18-8,894.09

Finding the Fourth Proportional to 10,910.36, 15,065.18 and 8,894.09

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Solution

The fourth proportional to 10,910.36, 15,065.18 and 8,894.09 is: 12,281.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.36 : 15,065.18 = 8,894.09 : x
  2. Step 2: Convert to fraction form
    10,910.36/15,065.18 = 8,894.09/x
  3. Step 3: Cross multiply
    10,910.36x = 15,065.18 × 8,894.09
  4. Step 4: Simplify right side
    10,910.36x = 133,990,946.99
  5. Step 5: Solve for x
    x = 133,990,946.99/10,910.36
  6. Step 6: Final answer
    x = 12,281.08

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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.