Home / 15,614.16-21,544.40-9,328.56

Finding the Fourth Proportional to 15,614.16, 21,544.40 and 9,328.56

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Solution

The fourth proportional to 15,614.16, 21,544.40 and 9,328.56 is: 12,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,614.16 : 21,544.40 = 9,328.56 : x
  2. Step 2: Convert to fraction form
    15,614.16/21,544.40 = 9,328.56/x
  3. Step 3: Cross multiply
    15,614.16x = 21,544.40 × 9,328.56
  4. Step 4: Simplify right side
    15,614.16x = 200,978,228.06
  5. Step 5: Solve for x
    x = 200,978,228.06/15,614.16
  6. Step 6: Final answer
    x = 12,871.54

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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.