Home / 13,429.19-20,140.75-5,106.24

Finding the Fourth Proportional to 13,429.19, 20,140.75 and 5,106.24

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Solution

The fourth proportional to 13,429.19, 20,140.75 and 5,106.24 is: 7,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.19 : 20,140.75 = 5,106.24 : x
  2. Step 2: Convert to fraction form
    13,429.19/20,140.75 = 5,106.24/x
  3. Step 3: Cross multiply
    13,429.19x = 20,140.75 × 5,106.24
  4. Step 4: Simplify right side
    13,429.19x = 102,843,509.66
  5. Step 5: Solve for x
    x = 102,843,509.66/13,429.19
  6. Step 6: Final answer
    x = 7,658.21

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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.