Home / 15,319.92-21,144.28-9,032.56

Finding the Fourth Proportional to 15,319.92, 21,144.28 and 9,032.56

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Solution

The fourth proportional to 15,319.92, 21,144.28 and 9,032.56 is: 12,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.92 : 21,144.28 = 9,032.56 : x
  2. Step 2: Convert to fraction form
    15,319.92/21,144.28 = 9,032.56/x
  3. Step 3: Cross multiply
    15,319.92x = 21,144.28 × 9,032.56
  4. Step 4: Simplify right side
    15,319.92x = 190,986,977.76
  5. Step 5: Solve for x
    x = 190,986,977.76/15,319.92
  6. Step 6: Final answer
    x = 12,466.58

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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.