Home / 15,652.48-21,621.11-11,666.66

Finding the Fourth Proportional to 15,652.48, 21,621.11 and 11,666.66

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Solution

The fourth proportional to 15,652.48, 21,621.11 and 11,666.66 is: 16,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.48 : 21,621.11 = 11,666.66 : x
  2. Step 2: Convert to fraction form
    15,652.48/21,621.11 = 11,666.66/x
  3. Step 3: Cross multiply
    15,652.48x = 21,621.11 × 11,666.66
  4. Step 4: Simplify right side
    15,652.48x = 252,246,139.19
  5. Step 5: Solve for x
    x = 252,246,139.19/15,652.48
  6. Step 6: Final answer
    x = 16,115.41

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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.