Home / 15,334.68-21,155.24-9,664.94

Finding the Fourth Proportional to 15,334.68, 21,155.24 and 9,664.94

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Solution

The fourth proportional to 15,334.68, 21,155.24 and 9,664.94 is: 13,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.68 : 21,155.24 = 9,664.94 : x
  2. Step 2: Convert to fraction form
    15,334.68/21,155.24 = 9,664.94/x
  3. Step 3: Cross multiply
    15,334.68x = 21,155.24 × 9,664.94
  4. Step 4: Simplify right side
    15,334.68x = 204,464,125.29
  5. Step 5: Solve for x
    x = 204,464,125.29/15,334.68
  6. Step 6: Final answer
    x = 13,333.45

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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.