Home / 15,601.78-21,530.55-8,528.41

Finding the Fourth Proportional to 15,601.78, 21,530.55 and 8,528.41

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Solution

The fourth proportional to 15,601.78, 21,530.55 and 8,528.41 is: 11,769.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.78 : 21,530.55 = 8,528.41 : x
  2. Step 2: Convert to fraction form
    15,601.78/21,530.55 = 8,528.41/x
  3. Step 3: Cross multiply
    15,601.78x = 21,530.55 × 8,528.41
  4. Step 4: Simplify right side
    15,601.78x = 183,621,357.93
  5. Step 5: Solve for x
    x = 183,621,357.93/15,601.78
  6. Step 6: Final answer
    x = 11,769.26

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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.