Home / 8,812.09-13,192.17-7,718.59

Finding the Fourth Proportional to 8,812.09, 13,192.17 and 7,718.59

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Solution

The fourth proportional to 8,812.09, 13,192.17 and 7,718.59 is: 11,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.09 : 13,192.17 = 7,718.59 : x
  2. Step 2: Convert to fraction form
    8,812.09/13,192.17 = 7,718.59/x
  3. Step 3: Cross multiply
    8,812.09x = 13,192.17 × 7,718.59
  4. Step 4: Simplify right side
    8,812.09x = 101,824,938.99
  5. Step 5: Solve for x
    x = 101,824,938.99/8,812.09
  6. Step 6: Final answer
    x = 11,555.14

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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.