Home / 15,298.85-21,111.17-8,583.54

Finding the Fourth Proportional to 15,298.85, 21,111.17 and 8,583.54

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Solution

The fourth proportional to 15,298.85, 21,111.17 and 8,583.54 is: 11,844.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.85 : 21,111.17 = 8,583.54 : x
  2. Step 2: Convert to fraction form
    15,298.85/21,111.17 = 8,583.54/x
  3. Step 3: Cross multiply
    15,298.85x = 21,111.17 × 8,583.54
  4. Step 4: Simplify right side
    15,298.85x = 181,208,529.22
  5. Step 5: Solve for x
    x = 181,208,529.22/15,298.85
  6. Step 6: Final answer
    x = 11,844.59

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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.