Home / 11,298.06-15,583.51-7,755.12

Finding the Fourth Proportional to 11,298.06, 15,583.51 and 7,755.12

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Solution

The fourth proportional to 11,298.06, 15,583.51 and 7,755.12 is: 10,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298.06 : 15,583.51 = 7,755.12 : x
  2. Step 2: Convert to fraction form
    11,298.06/15,583.51 = 7,755.12/x
  3. Step 3: Cross multiply
    11,298.06x = 15,583.51 × 7,755.12
  4. Step 4: Simplify right side
    11,298.06x = 120,851,990.07
  5. Step 5: Solve for x
    x = 120,851,990.07/11,298.06
  6. Step 6: Final answer
    x = 10,696.70

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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.