Home / 13,007.12-19,515.06-4,123.90

Finding the Fourth Proportional to 13,007.12, 19,515.06 and 4,123.90

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Solution

The fourth proportional to 13,007.12, 19,515.06 and 4,123.90 is: 6,187.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.12 : 19,515.06 = 4,123.90 : x
  2. Step 2: Convert to fraction form
    13,007.12/19,515.06 = 4,123.90/x
  3. Step 3: Cross multiply
    13,007.12x = 19,515.06 × 4,123.90
  4. Step 4: Simplify right side
    13,007.12x = 80,478,155.93
  5. Step 5: Solve for x
    x = 80,478,155.93/13,007.12
  6. Step 6: Final answer
    x = 6,187.24

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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.