Home / 15,672.30-21,628.36-8,598.56

Finding the Fourth Proportional to 15,672.30, 21,628.36 and 8,598.56

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Solution

The fourth proportional to 15,672.30, 21,628.36 and 8,598.56 is: 11,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.30 : 21,628.36 = 8,598.56 : x
  2. Step 2: Convert to fraction form
    15,672.30/21,628.36 = 8,598.56/x
  3. Step 3: Cross multiply
    15,672.30x = 21,628.36 × 8,598.56
  4. Step 4: Simplify right side
    15,672.30x = 185,972,751.16
  5. Step 5: Solve for x
    x = 185,972,751.16/15,672.30
  6. Step 6: Final answer
    x = 11,866.33

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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.