Home / 15,243.23-21,035.17-8,528.98

Finding the Fourth Proportional to 15,243.23, 21,035.17 and 8,528.98

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Solution

The fourth proportional to 15,243.23, 21,035.17 and 8,528.98 is: 11,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243.23 : 21,035.17 = 8,528.98 : x
  2. Step 2: Convert to fraction form
    15,243.23/21,035.17 = 8,528.98/x
  3. Step 3: Cross multiply
    15,243.23x = 21,035.17 × 8,528.98
  4. Step 4: Simplify right side
    15,243.23x = 179,408,544.23
  5. Step 5: Solve for x
    x = 179,408,544.23/15,243.23
  6. Step 6: Final answer
    x = 11,769.72

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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.