Home / 13,600.79-20,361.56-10,106.29

Finding the Fourth Proportional to 13,600.79, 20,361.56 and 10,106.29

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Solution

The fourth proportional to 13,600.79, 20,361.56 and 10,106.29 is: 15,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.79 : 20,361.56 = 10,106.29 : x
  2. Step 2: Convert to fraction form
    13,600.79/20,361.56 = 10,106.29/x
  3. Step 3: Cross multiply
    13,600.79x = 20,361.56 × 10,106.29
  4. Step 4: Simplify right side
    13,600.79x = 205,779,728.78
  5. Step 5: Solve for x
    x = 205,779,728.78/13,600.79
  6. Step 6: Final answer
    x = 15,129.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.