Home / 15,243.54-21,031.29-8,528.10

Finding the Fourth Proportional to 15,243.54, 21,031.29 and 8,528.10

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Solution

The fourth proportional to 15,243.54, 21,031.29 and 8,528.10 is: 11,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.54 : 21,031.29 = 8,528.10 : x
  2. Step 2: Convert to fraction form
    15,243.54/21,031.29 = 8,528.10/x
  3. Step 3: Cross multiply
    15,243.54x = 21,031.29 × 8,528.10
  4. Step 4: Simplify right side
    15,243.54x = 179,356,944.25
  5. Step 5: Solve for x
    x = 179,356,944.25/15,243.54
  6. Step 6: Final answer
    x = 11,766.10

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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.