Home / 15,295.98-21,101.31-9,628.14

Finding the Fourth Proportional to 15,295.98, 21,101.31 and 9,628.14

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Solution

The fourth proportional to 15,295.98, 21,101.31 and 9,628.14 is: 13,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.98 : 21,101.31 = 9,628.14 : x
  2. Step 2: Convert to fraction form
    15,295.98/21,101.31 = 9,628.14/x
  3. Step 3: Cross multiply
    15,295.98x = 21,101.31 × 9,628.14
  4. Step 4: Simplify right side
    15,295.98x = 203,166,366.86
  5. Step 5: Solve for x
    x = 203,166,366.86/15,295.98
  6. Step 6: Final answer
    x = 13,282.34

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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.