Home / 13,358.75-20,038.40-4,124.75

Finding the Fourth Proportional to 13,358.75, 20,038.40 and 4,124.75

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Solution

The fourth proportional to 13,358.75, 20,038.40 and 4,124.75 is: 6,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.75 : 20,038.40 = 4,124.75 : x
  2. Step 2: Convert to fraction form
    13,358.75/20,038.40 = 4,124.75/x
  3. Step 3: Cross multiply
    13,358.75x = 20,038.40 × 4,124.75
  4. Step 4: Simplify right side
    13,358.75x = 82,653,390.40
  5. Step 5: Solve for x
    x = 82,653,390.40/13,358.75
  6. Step 6: Final answer
    x = 6,187.21

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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.