Home / 15,844.52-21,865.75-9,477.67

Finding the Fourth Proportional to 15,844.52, 21,865.75 and 9,477.67

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Solution

The fourth proportional to 15,844.52, 21,865.75 and 9,477.67 is: 13,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.52 : 21,865.75 = 9,477.67 : x
  2. Step 2: Convert to fraction form
    15,844.52/21,865.75 = 9,477.67/x
  3. Step 3: Cross multiply
    15,844.52x = 21,865.75 × 9,477.67
  4. Step 4: Simplify right side
    15,844.52x = 207,236,362.80
  5. Step 5: Solve for x
    x = 207,236,362.80/15,844.52
  6. Step 6: Final answer
    x = 13,079.37

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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.