Home / 15,601.79-21,530.46-8,528.21

Finding the Fourth Proportional to 15,601.79, 21,530.46 and 8,528.21

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Solution

The fourth proportional to 15,601.79, 21,530.46 and 8,528.21 is: 11,768.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.79 : 21,530.46 = 8,528.21 : x
  2. Step 2: Convert to fraction form
    15,601.79/21,530.46 = 8,528.21/x
  3. Step 3: Cross multiply
    15,601.79x = 21,530.46 × 8,528.21
  4. Step 4: Simplify right side
    15,601.79x = 183,616,176.62
  5. Step 5: Solve for x
    x = 183,616,176.62/15,601.79
  6. Step 6: Final answer
    x = 11,768.92

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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.