Home / 8,687.09-12,967.73-7,636.16

Finding the Fourth Proportional to 8,687.09, 12,967.73 and 7,636.16

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Solution

The fourth proportional to 8,687.09, 12,967.73 and 7,636.16 is: 11,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.09 : 12,967.73 = 7,636.16 : x
  2. Step 2: Convert to fraction form
    8,687.09/12,967.73 = 7,636.16/x
  3. Step 3: Cross multiply
    8,687.09x = 12,967.73 × 7,636.16
  4. Step 4: Simplify right side
    8,687.09x = 99,023,661.12
  5. Step 5: Solve for x
    x = 99,023,661.12/8,687.09
  6. Step 6: Final answer
    x = 11,398.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.