Home / 15,328.56-21,153.38-8,614.46

Finding the Fourth Proportional to 15,328.56, 21,153.38 and 8,614.46

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Solution

The fourth proportional to 15,328.56, 21,153.38 and 8,614.46 is: 11,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.56 : 21,153.38 = 8,614.46 : x
  2. Step 2: Convert to fraction form
    15,328.56/21,153.38 = 8,614.46/x
  3. Step 3: Cross multiply
    15,328.56x = 21,153.38 × 8,614.46
  4. Step 4: Simplify right side
    15,328.56x = 182,224,945.87
  5. Step 5: Solve for x
    x = 182,224,945.87/15,328.56
  6. Step 6: Final answer
    x = 11,887.94

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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.