Home / 15,453.01-21,326.47-8,739.83

Finding the Fourth Proportional to 15,453.01, 21,326.47 and 8,739.83

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Solution

The fourth proportional to 15,453.01, 21,326.47 and 8,739.83 is: 12,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.01 : 21,326.47 = 8,739.83 : x
  2. Step 2: Convert to fraction form
    15,453.01/21,326.47 = 8,739.83/x
  3. Step 3: Cross multiply
    15,453.01x = 21,326.47 × 8,739.83
  4. Step 4: Simplify right side
    15,453.01x = 186,389,722.30
  5. Step 5: Solve for x
    x = 186,389,722.30/15,453.01
  6. Step 6: Final answer
    x = 12,061.71

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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.