Home / 11,087.16-16,643.70-7,207.80

Finding the Fourth Proportional to 11,087.16, 16,643.70 and 7,207.80

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Solution

The fourth proportional to 11,087.16, 16,643.70 and 7,207.80 is: 10,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,087.16 : 16,643.70 = 7,207.80 : x
  2. Step 2: Convert to fraction form
    11,087.16/16,643.70 = 7,207.80/x
  3. Step 3: Cross multiply
    11,087.16x = 16,643.70 × 7,207.80
  4. Step 4: Simplify right side
    11,087.16x = 119,964,460.86
  5. Step 5: Solve for x
    x = 119,964,460.86/11,087.16
  6. Step 6: Final answer
    x = 10,820.13

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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.