Home / 15,317.70-21,133.27-8,601.99

Finding the Fourth Proportional to 15,317.70, 21,133.27 and 8,601.99

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Solution

The fourth proportional to 15,317.70, 21,133.27 and 8,601.99 is: 11,867.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.70 : 21,133.27 = 8,601.99 : x
  2. Step 2: Convert to fraction form
    15,317.70/21,133.27 = 8,601.99/x
  3. Step 3: Cross multiply
    15,317.70x = 21,133.27 × 8,601.99
  4. Step 4: Simplify right side
    15,317.70x = 181,788,177.21
  5. Step 5: Solve for x
    x = 181,788,177.21/15,317.70
  6. Step 6: Final answer
    x = 11,867.85

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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.