Home / 15,334.30-21,160.79-8,528.29

Finding the Fourth Proportional to 15,334.30, 21,160.79 and 8,528.29

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Solution

The fourth proportional to 15,334.30, 21,160.79 and 8,528.29 is: 11,768.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,334.30 : 21,160.79 = 8,528.29 : x
  2. Step 2: Convert to fraction form
    15,334.30/21,160.79 = 8,528.29/x
  3. Step 3: Cross multiply
    15,334.30x = 21,160.79 × 8,528.29
  4. Step 4: Simplify right side
    15,334.30x = 180,465,338.16
  5. Step 5: Solve for x
    x = 180,465,338.16/15,334.30
  6. Step 6: Final answer
    x = 11,768.74

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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.