Home / 13,431.99-20,148.19-4,667.12

Finding the Fourth Proportional to 13,431.99, 20,148.19 and 4,667.12

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Solution

The fourth proportional to 13,431.99, 20,148.19 and 4,667.12 is: 7,000.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.99 : 20,148.19 = 4,667.12 : x
  2. Step 2: Convert to fraction form
    13,431.99/20,148.19 = 4,667.12/x
  3. Step 3: Cross multiply
    13,431.99x = 20,148.19 × 4,667.12
  4. Step 4: Simplify right side
    13,431.99x = 94,033,908.10
  5. Step 5: Solve for x
    x = 94,033,908.10/13,431.99
  6. Step 6: Final answer
    x = 7,000.74

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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.